Series 13: The Seeds of Doom

Somewhere in Antarctica, scientists Charles Winlett and Derek Moberley discover up an egg-shaped object in the ninth layer of the permafrost, and take it back to their camp. John Stevenson, the base botanist identifies it as vegetable-based and estimates it has been buried in the ice for some twenty thousand years. Winlett thinks it looks tropical, like a gourd, but Moberley points out that the Antarctica had ceased to be tropical at the time the seed was buried. Stevenson claims he feels something odd about the pod, as if it is alive, but the others laugh it off.

Back in London, Richard Dunbar of the World Ecology Bureau tries to show the Doctor photographs of the pod. Although he feels that the Doctor cannot help them, his superior Sir Colin Thackeray insisted. The Doctor examines the pictures and asks if they had considered that the pod is extraterrestrial. He tells Dunbar to contact the expedition by their regular video link, and tell them not to touch it until he arrives.

Back at the base, Stevenson discovers that the pod is growing larger and he believes it is absorbing ultraviolet radiation. In England, Dunbar visits the estate of millionaire Harrison Chase. Chase's estate is filled with thousands of plants, and he considers it his mission to protect the plant life of Mother Earth. Dunbar has come to show him pictures of the pod, its possible extraterrestrial origin and hints that such a valuable specimen could easily disappear.... for a price. Dunbar gives Chase the location of the pod. Chase calls for one of his men, Scorby, telling him to take Keeler along.

At the base, Winlett is half asleep near the pod when it opens up. A frond-like tentacle whips out and stings his arm, causing Winlett to collapse in pain. When Stevenson and Moberley find him, Winlett's face is covered with green hives. A message is sent to London informing them of the situation, but with the bad weather, it will take a few days for a medical team to reach the base.

Meanwhile, the Doctor and Sarah arrive at the base by helicopter and are met by Moberley. He tells them that usually up to a dozen people live at the base but currently the others are sixty miles away at South Bend, measuring the ice cap. In the sickbay, Winlett's body temperature and pulse are dropping rapidly. His face and body are now covered with a green fungus, and its growth is accelerating. Mike Wilson from South Bend radios them that the medical team has turned back due to whiteout conditions.

The Doctor asks for a blood test on Winlett, who is growing increasingly monstrous, and examines the now-empty pod. Stevenson acknowledges that it may be his fault; convinced that the pod was alive, he placed it under a lamp. Outside the base, the Doctor digs at the ice, uncovering another pod. Noting that the pods travel in pairs, the Doctors transfers it to the base freezer. On analysis, Winlett's blood is found to contain no blood platelets, but instead has schizophytes — microscopic organisms akin to plant bacteria.

The sound of engines is heard, and Moberley and Stevenson go meet what they presume is the medical team. The Doctor tells Sarah that Winlett is turning into a Krynoid, a kind of galactic weed that settles on planets and eats the animal life. He does not know exactly how the Krynoids travel between the stars; their planet may be geologically turbulent, with surface explosions sending matter shooting into space.

Stevenson and Moberley escort two men —Scorby and Keeler— into the base. The new arrivals claim that their private plane got lost and wound up at the base. The Doctor leaves to check on Winlett, taking the others and leaving Scorby and Keeler alone.

Winlett's transformation is nearly complete. The Doctor suggests that the arm be amputated to try to stop the spread of the infection at its source. Even if it does not work, it might buy them time. Moberley, as zoologist and therefore the most qualified to do the operation, is hesitant, but Sarah persuades him in the end. As they leave to gather the necessary equipment, Winlett rises from the bed.

When Moberley starts back towards the sickbay, he spots Winlett leaning against the wall. As Moberley approaches, Winlett reaches out and strangles him…


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Winlett leaves Moberley's dead body in the corridor and leaves the base. Meanwhile, Scorby finds the base's rifle and unloads it. Keeler is nervous, thinking that all they are here to do is to confirm the existence of the pod and report back to Chase, but Scorby disabuses him of the notion: they are to kill the others, take the pod and fly back. If Keeler is squeamish, Scorby warns him, there will be one more among the dead.

Sarah finds Moberley's body. Stevenson cannot believe that Winlett has done this, but the Doctor tells him that Winlett no longer exists; his mind has been taken over, and soon he will turn completely into a Krynoid. They gather their things to search for the creature and take the rifle, not realising it has been sabotaged. When the others leave, Scorby and Keeler go in search of the pod.

Dunbar tells Chase about a report of an infection at the base, but is shocked when Chase tells him he has sent his own men to Antarctica. Dunbar seeks an assurance that should anything go wrong, Chase will protect his identity. Chase pays Dunbar off.

The Krynoid finds the generator hut, built far from the base because of its new fuel cell system. However, when it sees the Doctor, Stevenson and Sarah approach, it turns away. Unable to find the Krynoid, and hoping that it is frozen in the snow, the three head back to base, and the Krynoid seeks shelter in the hut after their departure.

Meanwhile, Scorby and Keller ransack the base. When South Bend calls about the medical team, Scorby pretends to be Moberley and asks them to cancel it. When South Bend gets suspicious, Scorby disconnects the radio. Keller finds the open pod, and realises that it has germinated. Scorby wants to find the actual plant that emerged, but they find Moberley's body in the sickbay instead.

When Sarah and the Doctor enter the sickbay, Scorby holds them at gunpoint. Scorby questions the Doctor about Moberley, and the Doctor tells them about the pod and Winlett's infection. When Stevenson discovers them, he finds his rifle useless and is put with the others, but lets slip that a second pod exists.

Scorby threatens Sarah's life and the Doctor relents, telling Scorby that the second pod is in the freezer. Stevenson is forced to take it out, placing it in a thermal container for storage. Scorby then forces Sarah to take him to the generator hut with Keeler in tow, leaving the others tied up behind.

The Doctor knocks over an unlighted kerosene lamp and uses the broken glass to cut Stevenson's bonds, not knowing that Scorby has planted a bomb in the hut which will blow up the base. Keeler gets cold feet and tries to stop Scorby, who tosses him out of the hut.

Freed, the Doctor tells Stevenson to contact South Bend for the medical team, and goes in search of Sarah. However, the Krynoid has returned to the base, and kills Stevenson while he is making the call. The Doctor sees Scorby and Keller's plane take off, and runs to the generator hut where Sarah is tied up. She tells him about the bomb, but the creature arrives as well. They manage to get out the door and lock the Krynoid in, running away as the hut explodes, taking the rest of the base with it…


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Regaining consciousness in the snow, the Doctor and Sarah are picked up by a team from South Bend in their Snow Cat vehicle. Meanwhile, Scorby and Keller return to Chase in England with the second pod. Dunbar is angered at how far Chase had gone to secure the pod, but warns Chase that the Doctor and Sarah are still alive, and are scheduled to meet with him and Sir Colin in two hours.

At the meeting, the Doctor and Sarah describe how well planned the theft of the pod was, but the Doctor believes that the two men were stooges. The discovery of the pod had only been reported to the Ecology Bureau, so the leak must have come from them. The Doctor is sure that the pod is in England, and says that if they do not find it, it will be the end of everything — even Sir Colin's pension. He tells Dunbar to arrange for him to go to the Botanic Institute.

As they leave the building, a driver meets them claiming to be their ride. However, the limousine stops in the countryside, and the driver orders them out at gunpoint. With a bit of teamwork, the Doctor manages to jump the driver and punch him out. The Doctor and Sarah search the car, and find a painting by Amelia Ducat, one of the world's leading flower artists. When they visit her, Ducat tells them that the owner of the painting is Harrison Chase, and that he never paid her for the painting.

Keeler, who is a botanist himself, unsuccessfully tries to convince Chase to stop the experiments on the pod. Chase orders him to inject the pod with fixed nitrogen. Dunbar calls Chase and tells him that his driver is in the hospital, so when the Doctor and Sarah try to sneak into the mansion, they are spotted by some guards and Scorby, who capture them.

The Doctor and Sarah are brought before Chase, and despite having Scorby's gun at his head, the Doctor asks Chase grimly to hand over the pod. Chase politely refuses: He has the greatest collection of plants in the world, and when the pod flowers, it will be his crowning achievement. Before he executes them, Chase decides to show the Doctor and Sarah around the mansion, and his plant laboratory.

Keeler notes that the pod is growing, and tells Hargreaves, the butler, to summon Chase to the annex. There, Chase tells Keeler to inject more nitrogen into the pod. Scorby escorts the Doctor and Sarah into the gardens to kill them, but the two manage to overpower Scorby. The Doctor uses rope to lower Sarah down the wall so she can go and warn Sir Colin while he returns to the house to examine the pod. However, Sarah gets captured again.

The Doctor makes his way back into the mansion while Sarah is escorted by Scorby back to Chase. The Doctor watches through the skylight, horrified as Chase orders Sarah forced down to a chair, grabbing her arm and pinning it next to the pod. He wants to know what happens when the Krynoid touches human flesh. As Sarah struggles, the pod begins to open…


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The Doctor crashes through the skylight, knocking Scorby out and grabbing Sarah. They escape the room, locking Chase and his men in. As Chase tries to get the guards' attention, a frond from the pod stings Keeler's arm. Finally, a guard opens the door; he and Scorby go in pursuit of the Doctor. However, the Doctor is returning to examine the pod.

Keeler begs Chase to get him to a hospital, but Chase is more fascinated with the transformative process than saving Keeler's life. Chase and Hargreaves take Keller to the nearby cottage. Chase observes that the growth seems to be absorbing protein from Keeler's body, and tells Hargreaves to keep Keeler fed with meat.

When the Doctor returns to the empty laboratory, he is captured by Scorby and a guard, who take him to the compost room. Scorby activates the crusher, remarking that Chase recycles everything. The main gate calls the house: Amelia Ducat is here demanding her money. To avoid a fuss, Chase agrees to see her. Meanwhile, Sarah has entered the cottage, and sees Keeler, who is still lucid, although covered with the Krynoid growth. Keeler tries to convince Sarah to free his bonds, and when Sarah refuses, he grows more angry and paranoid. Sarah hides in a cupboard when she hears Hargreaves approach with a meal, and leaves at the first opportunity.

In the Library, Chase writes Ducat a cheque. Scorby enters and asks if they should start the "recycling experiment", and Chase says he wants to see it, asking Scorby to escort Ducat out. Chase goes to the compost room, and reveals that he has been feeding Keeler. The Doctor, tied up, is placed in the machine, to be shredded and pumped into the garden.

Sarah hides behind a suit of armor as Ducat and Scorby pass. She attracts Ducat's attention and asks her to take a message to Sir Colin, going back into hiding when Scorby returns to show Ducat out. Outside, Ducat enters a car with Sir Colin and Dunbar inside, and tells them what Sarah said. Dunbar, realising he has made a terrible mistake, says he will go in and get the Doctor. He tells Sir Colin that, if he does not return in half an hour, to return to London and call UNIT.

Sarah finds her way into the compost room and turns off the crusher just in time to save the Doctor. Hargreaves finds that Keeler has now almost completed his transformation, and runs in a panic as the creature frees itself. In the mansion, Dunbar pleads with Chase to abandon the experiment as Hargreaves reports Keeler's transformation to Chase. Dunbar says that this has gone far enough, and he is going to get help. Chase tells Scorby to stop him.

Scorby pursues Dunbar through the grounds as the Doctor and Sarah find Keeler missing from the cottage. The Doctor takes a sword from over the fireplace and they leave to search for the Krynoid. Dunbar runs into the monster, which is far larger than the Winlett creature was, and no longer even humanoid. He shoots at it uselessly, and is held fast by the surrounding plant life as the Krynoid kills him. Dunbar's screams attract the attention of Scorby and the guards as well as the Doctor and Sarah. The latter get there first, the Doctor drawing the sword above Dunbar's body as the Krynoid lurches towards them…


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The Doctor and Sarah Jane arrive just as the Krynoid finishes off Dunbar. The creature advances on them but Scorby and his men show up and distract it with otherwise useless gunfire. They all manage to escape to a cottage and barricade themselves in. Scorby is shocked that the creature was once Keeler. Chase calls them and orders Scorby to capture rather than kill the Krynoid and cuts off before the Doctor can explain.

The Krynoid smashes a window and extends a tentacle inside but they manage to drive it off. The Krynoid speaks using Keeler’s voice, demanding that the Doctor come out and join it and it will spare the others. Scorby is more than willing to give up the Doctor until Sarah Jane points out that without the Doctor they have no chance. The Doctor suggest Scorby rig up a bomb so they can all escape while the Krynoid is distracted.

Sir Colin tries to get through on the phone while Amelia gives him some advice. Sir Colin tries to contact the Brigadier and UNIT but Lethbridge-Stewart is out of the country. He eventually gets through to Major Beresford for assistance and sends Amelia home.

Chase prepares to take photographs of the Krynoid, claiming he has nothing to fear from it. The Doctor and Scorby initiate their plan as Chase arrives outside. Scorby throws his improvised bomb out an upstairs window and the Doctor makes a run for it. The Krynoid goes in pursuit, but the Doctor escapes in the limousine, leaving the Krynoid behind.

Scorby tries to find Chase at the greenhouse and discovers where he is from Hargreaves. They begin barricading the windows in preparation for the Krynoid’s attack. Chase makes his way through the grounds and confronts the Krynoid. It notices him and he approaches, taking photographs. It moves toward him as Chase claims he doesn’t mean it harm.

The Doctor arrives at the Bureau as Major Beresford warns he can’t do anything without evidence. The Doctor warns the Krynoid can channel its power through other plants, turning vegetation against humans. He shows them a series of reports of deaths of people near Chase’s estates being killed by plants. He then calls Sarah Jane and tells them Beresford is preparing to attack the Krynoid with a laser gun, but the Krynoid cuts the phone wires.

Chase wakes up in the woods and has clearly had a major experience: He begins talking about how the world will be recreated.

Scorby arrives and Sarah Jane points out how the vegetation around the windows is getting thicker. When Hargreaves reports that he heard screams, Sarah Jane taunts Scorby into going to investigate with her, and they find a dead guard killed by plants. Chase arrives and tells them that it’s the plants’ world, and humans are only parasites. He goes to the manor to develop his photographs, then begins speaking to the plants in his greenhouse.

Scorby, Sarah Jane, and Hargreaves go in to confront Chase and he speaks of how the world will be made perfect. They can’t get through to him as he talks about how he is one with the plants and animals are the enemy. Sarah Jane notices that the plants are closing in on them. The Doctor and a UNIT soldier drive onto the grounds while the plants overwhelm Sarah Jane and the others and start to strangle them.

The Doctor and the UNIT soldier, Sgt. Henderson, arrive and brought chemical plant-killer. They dispose of the plants, saving Scorby and Sarah Jane while the older Hargreaves is dead. Chase runs away and the Doctor and the others make their way into the lab and start removing the plants. But once they're outside Chase locks the door behind them and they can only gaze in horror as the now enormous Krynoid towers over them....


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UNIT soldiers arrive and open fire with their laser gun, distracting the Krynoid so that the Doctor and his group can get to another door. The Doctor believes that Chase is possessed by the Krynoid and determines to find him and eliminate the threat he poses to them from within.

After they leave, Chase slips back into the laboratory and destroys the loudspeaker system. Unable to find the millionaire, the others return to the laboratory and the Krynoid tries to break its way in. Henderson goes to get more timber to barricade the windows and Chase knocks him out.

Scorby starts to panic and wants to run, but the Doctor warns him that every plant on the grounds is under the Krynoid’s control. Meanwhile, Chase puts Henderson in the compost machine and activates it, killing the unconscious soldier.

The Doctor works to repair the loudspeaker system as the Krynoid renews its attack, and Scorby panics and runs for it. He tries to make his way across the grounds through fields of hostile plants and makes his way across a shallow pond, but the plants grab and pull him underwater, killing him.

The Doctor and Sarah Jane realize that Henderson is gone and Sarah Jane goes to look for the soldier. She makes her way to the compost machine room and Chase confronts her, telling him he’s become part of the plant world thanks to the Krynoid. Chase plans to support the Krynoid and refers to humanity as parasites, then attacks Sarah Jane and knocks her unconscious.

Beresford contacts the Doctor, who warns they have 15 minutes until the Krynoid germinates, spreading its seeds across England. The Doctor tells them to launch an air strike before it’s too late, and regardless of the fact he and Sarah Jane are at ground zero.

Chase has tied up the unconscious Sarah Jane and starts feeding her into the compost machine. The Doctor arrives, sends Chase flying, and shuts off the machine to untie Sarah Jane. He gets her out but Chase turns the machine back on and throws himself at the Doctor, and the two struggle inside the machine’s bin. The Doctor manages to climb out as Chase is pulled into the machine despite the Doctor’s efforts to save him.

The RAF launches a sighting run as Beresford and Sir Colin look for any signs of the Doctor. Sarah Jane and the Doctor can’t get out through the plant life covering the house but the Doctor rigs a steam pipe and they blast their way out. They make their way through the hostile plant life and take refuge in a clearing filled with cut-down trees, as the RAF opens fire and destroys the Krynoid along with the mansion.

Later, the Doctor, Sarah Jane, and Sir Colin discuss the apparent destruction of the Krynoid. Sir Colin wants the Doctor to address the Royal Horticultural Society but the Doctor instead offers to take Sarah Jane on a vacation to Cassiopeia. However, the TARDIS materializes in Antarctica when the Doctor forgets to reset the coordinates

Cast
Doctor Tom Baker (Fourth Doctor)
Companion Elisabeth Sladen (Sarah Jane Smith)
Guest stars
Tony Beckley — Harrison Chase
Kenneth Gilbert — Richard Dunbar
Michael Barrington — Sir Colin Thackeray
Sylvia Coleridge — Amelia Ducat
John Challis — Scorby
Mark Jones — Arnold Keeler/Krynoid Voice
Seymour Green — Hargreaves
Michael McStay — Derek Moberley
Hubert Rees — John Stevenson
John Gleeson — Charles Winlett
Ian Fairbairn — Doctor Chester
John Acheson — Major Beresford
Ray Barron — Sergeant Henderson
Alan Chuntz — Chauffeur
David Masterman — Guard Leader
Harry Fielder — Guard

Production
Writer Robert Banks Stewart
Director Douglas Camfield
Script editor Robert Holmes
Producer Philip Hinchcliffe
Executive producer(s) None
Production code 4L
Series Season 13
Length 6 episodes, 25 minutes each
Originally broadcast January 31–March 6, 1976

source: wikipedia

Series 13: The Brain of Morbius

On the planet Karn, an insect-like alien crawls away from an escape pod. It is ambushed and killed by Condo, a large man with a hook for a hand, who takes its head to a castle and his master Solon. However, the head is unsuitable — Solon needs a humanoid, warm-blooded and with a central nervous system.

The TARDIS materialises on Karn in the middle of a lightning storm, and the Fourth Doctor rushes out, ranting at the Time Lords for diverting him to this planet. Sarah suggests that perhaps the TARDIS malfunctioned again, but the Doctor is insistent there is something going on which the Time Lords do not want to sully their hands with. While the Doctor sulks, Sarah finds the escape pod, and climbing to a higher point, sees a valley filled with wrecked spacecraft.

She comes across the headless body of the alien and gasps, which finally attracts the Doctor's attention. The Doctor identifies it as a Mutt. He also now recognises the stars — his homeworld is within a couple of billion miles from this planet. Sarah spots the castle just as it starts to rain, and the two travellers make for it, all the while observed by a girl in a strange headdress.

The girl, Ohica, reports to the elderly Maren, the leader of the Sisterhood of Karn. Maren does not believe Ohica at first, insisting that no ship could approach Karn without attracting their honed senses. Maren shows Ohica the Flame of Life, which is burning low. Without the Flame, there is no Elixir, and there has not been for over a year — the chalice stands empty. The secret of the Elixir is known only to the Sisterhood and the High Council of the Time Lords, with whom they shared the Elixir. Now, there is none left, except for the few vials they have kept for themselves. Maren fears that the Time Lords have sent agents to steal the Elixir. Maren tells Ohica to summon the other sisters to form a circle.

In the castle, Solon scolds Condo, warning him that if he does not obey him, he will not reattach Condo's arm. The Doctor and Sarah ring the doorbell, seeking shelter. Solon is delighted at the arrival of humans, and welcomes the two, complimenting the Doctor on his "magnificent" head. The Doctor notices a clay bust, but Solon quickly draws a sheet over it. When the Doctor asks Solon about the Mutt and the wrecked ships, Solon suggests that it is due to the magnetic radiation around the planet. Solon rescued Condo from one such starship, and had to amputate his arm to save his life.

The Sisterhood chant "Sacred Fire, Sacred Flame" in a circle, allowing Maren to see the TARDIS reflected in her ring. Concentrating further, they make the TARDIS materialise in their shrine in the midst of a strange mist. Examining the ship, Maren identifies it as a Time Lord vessel, and concludes that the Doctor is here on their behalf to steal the elixir. The Sisterhood's powers can overwhelm most others and drive them insane, but the Time Lords are their equals in mind power. The circle continues to chant, seeking the Doctor.

The Doctor knows of Solon, who was an authority on microsurgical techniques and tissue transplants. He remarks that Solon's disappearance caused quite a stir and there were rumours that he had joined the Cult of Morbius. The Doctor now recognises the clay head — it is that of Morbius, one of the most despicably criminal minded Time Lords in history. Before he can say anything further, the drugged wine takes its effect, and the Doctor falls over unconscious as does Sarah.

Solon and Condo take the Doctor's body to the laboratory, not realising that Sarah was only feigning unconsciousness. In the laboratory, Solon's examination of the Doctor confirms he is a Time Lord. Condo is concerned about their power, but Solon dismisses them as spineless parasites. Morbius offered them power, but they rejected it, and they will now feel the power of his revenge. Needing proper lighting for the operation, Solon and Condo go to repair the generators that have been knocked out by the storm. Once they leave the room, however, the Doctor's body vanishes in the same mist the TARDIS did.

Sarah keeps hidden as Solon and Condo pass, and enters the lab. She draws back the curtain on a bed, thinking it is the Doctor, but as the lights come up, she sees a headless, patchwork creature made from various body parts. It sits up...


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Sarah moves away from it quickly, but hears Solon and Condo returning to the laboratory and has to hide. Solon finds the Doctor gone, and concludes that it must be the work of the Sisterhood. Solon swears revenge, and he and Condo go to get the Doctor's body back.

The Doctor regains consciousness to find himself surrounded by members of the Sisterhood. Maren accuses him of being sent by the Time Lords to steal the Elixir. The Doctor denies this, saying that the last thing he remembers is having wine with Solon and Morbius... but Morbius is dead, executed by the Time Lords on Karn for leading a rebellion. His body was placed in a dispersal chamber and atomised. The Doctor realises that he just before he passed out, he felt the mind of Morbius. Maren refuses to believe that Morbius is alive and says that the Doctor will join him in death shortly.

Sarah trails Solon and Condo as they make their way towards the shrine. They observe the Sisters gathering wood to burn the Doctor at the stake. The Doctor points out that the Time Lords have always been friendly to the Sisterhood — they saved them when Morbius overran the planet. Maren retorts that this was out of self-interest as they needed the Elixir. Ohica reveals that the Flame is dying. The Doctor is puzzled, as the Flame is fed by gases from deep within the planet and should last for millions of years unless there has been some subterranean movement. They tie the Doctor to the stake while chanting the Song of Death. The Doctor warns them that if the gases are sealed in, the mountain could explode.

Solon and Condo interrupt the ceremony, to Maren's anger. Solon asks them to spare the Doctor, even offering Condo in his place. When that is denied, he begs them to give him the Doctor's head. While Maren dismisses Condo and Solon, a disguised Sarah sneaks up behind the Doctor and cuts his bonds. The ceremony starts again, and as the flames lick up, Maren's eyes close. The Doctor and Sarah take the opportunity to slip away, but Maren spots them, hitting Sarah with a blue bolt from her ring before they get away.

Back at the castle, Condo is angered by Solon's offer to sacrifice him, and threatens to kill Solon. Pleading for his life, Solon offers to restore Condo's arm and tells him to prepare the laboratory. Meanwhile, Sarah and the Doctor have escaped the shrine, but Sarah has been blinded by the energy from Maren's ring. She is worried that it may be permanent, but the Doctor assures her that the flash merely numbed the optic nerves and she should recover in a few hours. Despite Sarah telling him about the headless body she saw, the Doctor leads them back towards Solon's castle.

Solon speaks with a tremulous voice he addresses as Morbius. Solon asks for more time, but Morbius is impatient. Condo calls from above: the Doctor and Sarah have arrived. The Doctor asks him to examine Sarah's eyes, and they go to the laboratory. As Solon does so, the Doctor finds the headless body hidden behind the curtain. Condo escorts Sarah back to the parlour, while the Doctor speaks to Solon. Solon tells him that Sarah's retinae have been almost completely destroyed, but there is one chance: the Elixir of Life. Despite the risks, the Doctor must return to the shrine.

Solon summons Condo, who leaves Sarah in the parlour. Solon gives a note for Condo to pass to the Sisterhood before the Doctor gets there. Sarah hears Morbius's voice calling for Solon. Following the sound, she enters a hidden laboratory. As she stumbles blindly towards Morbius, who is a glowing brain in a tank, he accuses her of being a part of the Sisterhood, sent here to destroy him...


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Solon enters and drags Sarah out of the laboratory. As he closes the door, Sarah hears Solon address the voice as "Morbius" and hears how Solon has sent the Doctor into a trap. Sarah locks Solon in the laboratory and, still blind, makes her way out of the castle.

In the shrine, Maren gives five of the Sisters, including Ohica, the last of Elixir. Only these five will survive when the Flame finally dies. The letter from Solon arrives, and Maren tells Ohica to warn the guards. When the Doctor enters the tunnels, a net falls on him and he is surrounded. When he explains why he came back, Maren tells him that the effects of the ray are not permanent, and Solon knows that. Maren demands to know why the Doctor is here, if it is not to steal the Elixir, and the Doctor replies that he feels something evil is brewing, something to do with Morbius.

Maren still does not believe — she saw Morbius being dispersed. The Doctor asks if Solon was here at that time, and Maren says many came to Karn at the time. Morbius led an army of mercenaries, promising them the Elixir and immortality and revealing its existence to the cosmos. The Doctor tells Maren that if she wants his help, the wrecking of spaceships simply passing by Karn has to stop. Outside, Sarah continues to work her way along the rocks and runs into Condo, who had orders to find her. He tells her the Doctor is dead and carries her, struggling, back to the castle.

The Doctor persuades Maren to let him see the Flame, the first one outside the Sisterhood to see it. The Doctor admires the process — the heat of the Flame causes oxidation of chemicals in the surrounding rocks, with the reaction of superheated gases forming drops of the Elixir. The Doctor insists the process is not mystical and with analysis, the Elixir could probably be synthesised, but the consequences would be disastrous with everyone trying to live forever. Even the Time Lords only take it in rare cases, not regularly like the Sisterhood, who because of it have become stagnant, unchanging, without progress.

The Doctor takes something from his hair and puts it in the Flame, seemingly extinguishing it. Horrified, Maren orders the Doctor killed, but the flames ignite again, brighter than ever. It was merely soot that was blocking the gases.

At the castle, Sarah is bound hand and foot and lying on a table. Solon rants about how others called him insane, and only Morbius believed in him. When Solon tells Morbius that the Doctor is a Time Lord, Morbius calls him a fool — that means that the Time Lords have tracked him down and will return in force. Morbius insists that he be transferred into the body now, and asks about the artificial brain casing Solon once constructed. Solon protests that he abandoned it because there was no way to stop the static electricity build-up, which risked severe pain and seizures. Morbius tells him that he will take his chances.

Back in the castle, Solon prepares to operate, but Condo is enraged when he recognises his lost arm attached to the patchwork body. He attacks Solon, who shoots him in the belly. As the two struggle, Morbius's brain falls to the floor. Not knowing what damage has been done, Solon places the fallen brain in the casing, releasing Sarah so she can assist in the operation. If Morbius dies, so does she.

The wounded Condo crawls into the hallway as outside, the Sisters carry the Doctor's seemingly dead body through the lightning storm. In the meantime, the operation is finished — within minutes Morbius will live again. Solon goes to answer the door bell, and sees the Sisters leaving the Doctor's body in the parlour. In the laboratory. Sarah's eyesight starts to clear, but the monstrous body of Morbius gets off the operating table and lumbers towards her...


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Sarah screams as she sees the Morbius creature, and dodges out of the way. She warns Solon that the creature is loose and he runs back to the laboratory. Sarah notices the Doctor's body, but as she approaches, the Doctor wakes up and smiles at her. He is here to stop Solon, but Sarah tells him it is too late.

Morbius sees his new body in the mirror, and smashes it angrily. Solon tries to calm him down, but Morbius renders him unconscious. When the Doctor meets the creature, he too is struck down. Morbius chases Sarah, but Condo intervenes, knocking Sarah down the stairs into the cellar while he grapples with Morbius. However, Morbius is too strong, and kills Condo instead. Morbius wanders out of the castle as the Doctor regains consciousness. He carries Sarah into the secret laboratory to let her recover.

Solon, too, has awakened, and assembles a tranquilizer gun. He tells the Doctor that the operation was not complete, only the motor functions are working, the rest on an instinctual level. Knowing Morbius's hatred, he will seek out the Sisterhood. Sure enough, Morbius finds one of the sisters in some ruins nearby and kills her. The Doctor and Solon find the body and they search the ruins. Morbius attacks the Doctor, but is knocked out by Solon's tranquilizer. As they carry the creature back to the castle, the Doctor tells Solon that Morbius's brain will be detached and returned to the Time Lords.

The body of the dead Sister is brought back to Maren. Ohica reports that witnesses saw a creature and then the Doctor and Solon hunting for it. Maren realises that Solon has succeeded in his experiments and resurrected their ancient enemy. But Maren is too old and weak to leave the shrine, and she gives Ohica permission to lead the Sisters to the castle.

The Doctor gives Solon five minutes to disconnect the brain as he goes and checks on Sarah. However, Solon locks them in the secret laboratory instead and begins to repair Morbius. Using materials from the secret laboratory, the Doctor makes cyanide gas, which he then pipes through a vent that leads to the operating room above.

Solon has finished the operation, but the gas chokes him and he dies. The alien lungs of Morbius, however, are more robust and the creature walks out of the room unharmed. He goes to confront Sarah and the Doctor — he claims that when the knowledge of his resurrection spreads, his followers will rise in their millions. The Doctor and Sarah mock Morbius in an attempt to overheat his brain, and the Doctor challenges him to a mindbending contest.

They grab hold of the appropriate apparatus in the laboratory and begin. The machine's display begins to show Morbius's brain casing head, then his previous face, then the Doctor, then the Doctor's previous incarnation. Further and further back into the Doctor's past the images go, as Morbius asks, "How far, Doctor? How long have you lived?" The face of the First Doctor fades into a series of eight other faces, with the current Doctor interspersed between them looking more defiant... then Morbius's brain case shorts out. The Doctor collapses, as Morbius stumbles out in a daze.

Ohica's band of sisters finally reach the castle, and threaten Morbius with lit torches. Ohica goes down to the secret laboratory while the other Sisters herd Morbius out into the mountains. Ohica finds Sarah cradling the dying Doctor. Outside, the Sisterhood chases Morbius over a cliff, where he falls to his death.

Taking the Doctor back to the shrine, Maren says only the Elixir of Life can save him, but there is none left. However, the revived Flame has gathered enough Elixir. There is enough for the Doctor, but not for Maren, who accepts that the Doctor was right: there should be an end. The Elixir is given to the Doctor, who revives almost immediately. Maren steps into the Flame of Life, becoming younger, and then vanishes.

Ohica starts to thank the Doctor, but he stops her, saying that Sarah and he have another engagement. Before they leave, he gives her a match and touch paper in case they need to relight the Flame again. This time, the TARDIS vanishes in a puff of light and smoke...

Cast
Doctor Tom Baker (Fourth Doctor)
Companion Elisabeth Sladen (Sarah Jane Smith)
Guest stars
Philip Madoc — Doctor Solon
Colin Fay — Condo
Michael Spice — Voice of Morbius
Stuart Fell — Morbius Monster
Cynthia Grenville — Maren
Gilly Brown — Ohica
Sue Bishop, Janie Kells, Gabrielle Mowbray, Veronica Ridge — Sisters
John Scott Martin — Kriz

Production
Writer "Robin Bland” (Terrance Dicks rewritten by Robert Holmes)
Director Christopher Barry
Script editor Robert Holmes
Producer Philip Hinchcliffe
Executive producer(s) None
Production code 4K
Series Season 13
Length 4 episodes, 25 minutes each
Originally broadcast January 3–January 24, 1976

source: wikipedia

Series 13: The Android Invasion

A UNIT soldier walks, as if in a trance, through the woods, his right arm twitching spasmodically. Nearby, the TARDIS materialises, and the Fourth Doctor and Sarah step out. The Doctor explains that the coordinates were set for Sarah's time but the linear coordinates were off, so they could be miles from London. In any case, Sarah is glad to be back on Earth. The Doctor detects an odd reading of energy or radiation nearby.

The Doctor and Sarah meet a group of four men in while suits and opaque helmets. When the Doctor asks them for directions, they start shooting at them with their index fingers. The Doctor and Sarah duck and run, with the four in pursuit. Sarah slips down a hillside and clings to a cliff ledge. The Doctor helps her up; at that point, they see the soldier, jerkily making his way towards the cliff's edge. The Doctor shouts at him to stop, but he pays no heed, running right over the cliff and falling to his death.

The Doctor searches the body, finding a wallet full of shiny, freshly minted coins, all dated the same year. They also spot a casket-shaped pod nearby, which the Doctor finds familiar. Before he can identify it further, shots ring out: the white-suited men have found them again. They run once more through the countryside, avoiding their pursuers and reaching a village, which Sarah recognises as Devesham, which lies about a mile from a Space Defence Station.

The village, however, is deathly quiet, and seems unpopulated. The Doctor decides to try the local pub, the Fleur-de-Lys, but it is also empty, and the Doctor finds the same freshly minted coins in the register. Sarah then spots the white suits coming down the street, accompanied by the "dead" soldier. A lorry arrives, carrying what seem to be villagers, all in a trance-like state. They are helped off the vehicle by the white suits, and distribute themselves around the village. Mr Morgan, the landlord of the pub, enters it along with several other people while Sarah and the Doctor hide in the store room. The villagers take their seats silently, waiting motionless until the clock strikes eight, when they suddenly come to life, acting normally.

The Doctor intends to get to the Space Defence Station and contact UNIT. He leaves, telling Sarah to meet him at the TARDIS if anything goes wrong. However, the "dead" soldier finds her in the store room and questions her. Morgan suggests that Sarah might be part of "the test". But when Sarah asks what test, he tells Sarah that she should go.

Outside, Sarah hides behind the lorry, observing one of the white suits turn around. Behind the opaque visor is nothing but a slab of plastic and electronics. Sarah runs for the woods, reaching the TARDIS. She spots a similar pod just next to the time machine and goes to examine it, leaving the TARDIS key in the lock. Suddenly, the TARDIS dematerialises without her, and as Sarah is still trying to understand why, a hand reaches out from the pod. Startled, Sarah sees a man lying inside, but when she goes closer, he grabs her around the throat. She breaks free and runs.

At the Defence Station, the Doctor asks a soldier on guard where the command officer is, but the soldier just stares ahead, unresponsive. Also inside the building, Senior Defence Astronaut Guy Crayford is addressed by a disembodied voice. The voice, named Styggron, tells him that there is a random "unit" within the complex and orders him to check.

The Doctor enters an office marked with Brigadier Lethbridge-Stewart's name, but it is empty. Crayford enters, and points a gun on him. The Doctor introduces himself as UNIT's scientific advisor. Crayford has heard of him, but as the Brigadier is in Geneva, and Colonel Faraday is in command, there is no one to confirm the Doctor's identity; he could be an impostor. Before Crayford can have the Doctor taken to detention, the Doctor flips the desk over and runs. However, despite making it outside, he is recaptured. Sarah sees this and sneaks into the building, going to the Doctor's cell and unlocks the door, unaware that from behind a wall a stony alien face is observing them.


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Styggron contacts Crayford again, complaining about a second random unit. Crayford identifies this random units as the Doctor and Sarah. At that moment, the alarm sounds indicating the Doctor's escape. Crayford sends his UNIT soldiers to stop them. Hiding in a storage cupboard, the Doctor tells Sarah about Crayford. She replies that it is impossible: Crayford was in deep space while testing the XK-5 Space Raider when it vanished, presumed destroyed. The Doctor and Sarah venture out to find Sergeant Benton standing in the reception area, who points a pistol at them. Styggron wants the Doctor captured alive. When Crawford cancels the kill order, Benton becomes dizzy, giving the Doctor and Sarah a chance to run away. Crayford orders Harry Sullivan to cordon off the perimeter road.

The two decide to return to the village and warn London, while being pursued by tracker dogs. Sarah twists her ankle while running through the woods and this slows her down. The Doctor hides Sarah in a tree, taking her scarf to draw the dogs away. He then hides in a stream, the dogs losing his trail. Unfortunately, when the soldiers turn back, they spot Sarah, and capture her. Styggron tells Crayford to locate, but not seize the Doctor. He has other plans for him.

Meanwhile, in an alien-looking room, Sarah is strapped down to a table. Harry tells her it is no use to struggle, and under Styggron's order, commences the scan. In the village, the Doctor finds the telephones are not working. He meets Morgan, who tells him the lines are down after a gale. Styggron speaks to another of his kind, Chedaki, who feels that the time for experiments are over, but Styggron insists that they must confirm their techniques are flawless if they are to conquer worlds other than Earth. Styggron contacts Crayford and tells him to commence the final test.

In the pub, the Doctor finds more oddities: an unused dart board, plastic horse brass on the wall and a tear-off calendar with only one date on every page - Friday 6th July. The telephone rings, and the call is for the Doctor. It is Sarah, who tells the Doctor she was captured but managed to escape. She asks the Doctor to meet her by the Village shop and to be careful of the robots. He hangs up the call, then finds that the telephone has stopped working again. The Doctor meets Sarah, who explains how she escaped. The Doctor remarks on the providence of her finding the only telephone in the village that worked, and believes they are being tested to find out how smart they are.

He decides to take Sarah to the TARDIS and use the radio there. However, the TARDIS is gone. The Doctor is puzzled: the ship is not programmed to auto-operate, unless... he asks Sarah for her TARDIS key, and when she claims she has lost it, the Doctor tells her she never had it. When Sarah put the key in the lock, she released the TARDIS's pause control and it continued its journey to Earth. This is not Earth, this is not a real forest, and she is not the real Sarah. Moreovet, the real Sarah wouldn't wearing the scarf, which the Doctor took off to draw the dogs away. The Doctor grabs the duplicate by the shoulders and demands to know where Sarah is. The duplicate pulls free, but falls to the ground, her face popping open and revealing the electronics underneath.


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The android Sarah rises to its feet and starts to fire its pistol at the Doctor's retreating form. Chedaki tells Styggron that it was a foolish experiment. The Doctor could undo their plans. Styggron dismisses this; both the village and the Doctor will be destroyed by a matter dissolving bomb. The real Sarah is being kept alive so Styggron can test the virus he intends to use to cleanse the Earth of human life. All the while, Sarah is feigning unconsciousness and listening. When the coast is clear, she gets up and sneaks away.

The Doctor watches the lorry drive into the village and evacuate the androids to the Kraal base. The Doctor is grabbed from behind by Styggron, who gets two white suits to tie him up while the Kraal places the bomb at the Doctor's feet. Luckily, Sarah too has made it back to the village, and uses the Doctor's sonic screwdriver to cut his bonds. With seconds to spare, they run into the base and shut the door, as the village dissolves into a wasteland.

However, the two are surrounded by androids, who escort them to a cell. The Doctor tells Sarah that he should have realised — the radiation levels he picked up when they landed were those of Oseidon, the Kraal planet. The levels are increasing and the planet will soon be uninhabitable, which is why the Kraals are invading Earth. The duplicated village and their androids were a training ground.

Crayford enters the cell and tells the Doctor that it is all for the best. Soon, the Kraals will send his ship back by space-time warp so he can make a normal landing. He has recently established radio contact with Earth, and fed them a story of how his ship was trapped in an orbit around Jupiter and he survived by rationing his supplies and recycling his water. The world's attention focused on his landing, the space shells containing the androids will be taken for meteorites, who will emerge and pave the way for the main invasion fleet. He is helping the Kraals because while Earth left him for dead, they rescued his ship and reconstructed his body. The Kraals only want to survive, and have also promised him no humans will be harmed as long as they obey.

Styggron gets "Harry" to place a drop of the virus in a jug of water to be taken to the cell. Meanwhile, although the sonic screwdriver is useless on the door, the Doctor has managed to remove a floor plate, intending to use the wiring below to electrocute their android guard. "Harry" enters with the water, and also to take the Doctor away. Before he goes, he tells Sarah not to waste the water and mentioned it is very good electrolyte.

The Doctor is strapped down to the Kraal analysis table which will copy all his knowledge and experience. Despite what Styggron has told Crayford, he reveals that does intend genocide. Earth's resources are too limited to be wasted on an "inferior species". The virus, distributed by androids, will wipe the Earth clean in three weeks, then burn itself out. Styggron will then signal the invasion fleet. Styggron leaves the machine to do its work, and when it finishes, the stimulation will make the Doctor's head explode.

Sarah rigs the wiring beneath the cell floor, then sets a small fire to lure the android guard in. He steps in the puddle of water, and is electrocuted when Sarah applies the power cable. She makes her way to the Doctor and turns off the scan. She helps the disorientated Time Lord out of the base, heading for Crayford's rocket before it takes off. The rocket is launched, and the G-forces start to crush them.


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Sarah blacks out, but is awakened by the Doctor. He tells her that was nothing; there is a more dangerous ride ahead. Before the rocket lands, the pods will be ejected, and the Doctor and Sarah will ride two of them to Earth to warn the real Defence Station, although he cannot guarantee they will survive the trip down. As they talk, neither notices a nearby pod open slightly to reveal an android Doctor. On Earth, Matthews at the Defence Station's scanner room picks up Crayford's rocket. Grierson, the man in charge, informs Colonel Faraday. Meanwhile, having found the TARDIS in the woods near Devesham, Benton and Harry have been searching for the Doctor and Sarah, but to no avail. Benton is worried, as he has never known the Doctor to leave the TARDIS key in its lock.

Faraday welcomes Crayford home on the radio, but the signal is broken up by the "meteor shower" of pods which, unusually, slow down as they enter the atmosphere. Some of the pods land in a nearby field, and one opens up to reveal the Doctor. However, he is unable to find Sarah. Sarah, having landed elsewhere, finds the TARDIS in the woods. As she looks around, the Doctor taps her on the shoulder. However, this Doctor is an android, and behind it a pod opens to disgorge another Sarah replica. The real Sarah runs for it. The XK-5 re-establishes contact and comes in for a landing. Harry and Faraday head for the rocket, not knowing that Styggron is there with Crayford.

The real Doctor enters the Station, and recognises the "dead" soldier. Showing him a pass, the Doctor tells the soldier that if he sees the Doctor again today he is to report it to him immediately. The Doctor goes to the scanner room, leaving the soldier puzzled. When Benton tells him where Harry and Faraday are, the Doctor contacts them on the radio and urges them not to enter the rocket. He will meet them at the lift.

While the Doctor gives Grierson some instructions for modifying the radar dish, an android Matthews has incapacitated Benton and introduced an android replacement. Grierson says that if the Doctor points the dishes down here, it will jam every piece of electronic equipment for miles. Faraday returns to the scanner room, demanding an explanation. The Doctor tells them about the Kraal invasion. However, the Doctor is too late: Harry and Faraday have been replaced, and the android Doctor is pointing a gun at him. He slams the door in the android's face and leaps through a window. Outside, he meets Sarah. The Doctor tells Sarah their only chance is to stop the androids before they take over the complex, and runs back towards the scanner room, bluffing his way past "Benton" by posing as his duplicate. Sarah climbs up the rocket towards the real Harry and Styggron.

Grierson finishes his modifications, but is shot in the shoulder by the android Doctor before he can turn on the power. The android is about to shoot the original when Crayford enters, saying that Styggron promised no killing. The "Doctor" calls him a fool, and tells him about the virus. Crayford cannot believe this, but the real Doctor tells him that his rocket was actually hijacked by the Kraal, and they did not reconstruct but merely brainwashed him. Realising the truth, Crayford rushes out, distracting the android long enough for the Doctor to make his move. In the struggle, the Doctor manages to activate the power to the radar, jamming all the androids in mid-step.

In the rocket, Sarah unties Harry and Faraday. Styggron enters, holding a ray gun on them, but Crayford appears and attacks him. The two grapple, and Styggron shoots Crayford. The Doctor makes his own entrance, punching the Kraal, who falls on the vial of virus, cracking it open. Styggron shoots the Doctor before he dies. Sarah is horrified, but the real Doctor shows up — he had programmed his duplicate to distract Styggron. As proof, the android disintegrates into its component parts.

Sarah and the Doctor make their way back to the TARDIS. Sarah says she is going to take a taxi home, but when the Doctor offers to take her home instead, she smiles, "How can I refuse?" The two enter the ship and it vanishes.

Cast
Doctor Tom Baker (Fourth Doctor)
Companion Elisabeth Sladen (Sarah Jane Smith)
Guest stars
Ian Marter — Harry Sullivan
John Levene — RSM Benton
Milton Johns — Guy Crayford
Martin Friend — Styggron
Roy Skelton — Chedaki
Stuart Fell — Kraal
Peter Welch — Morgan
Max Faulkner — Corporal Adams
Dave Carter — Grierson
Patrick Newell — Colonel Faraday
Hugh Lund — Matthews
Heather Emmanuel — Tessa

Production
Writer Terry Nation
Director Barry Letts
Script editor Robert Holmes
Producer Philip Hinchcliffe
Executive producer(s) None
Production code 4J
Series Season 13
Length 4 episodes, 25 minutes each
Originally broadcast November 22–December 13, 1975

source: wikipedia

Series 13: Pyramids of Mars

Egypt, 1911. Marcus Scarman, Fellow and Professor of Archaeology at All Souls College, Oxford University, is excavating a blind pyramid and finds that the door to the burial chamber is inscribed with the Eye of Horus. Scarman's Egyptian assistants panic and flee at the sight of the glowing hieroglyph, leaving the Professor to enter the chamber alone. As he holds a light up to see the undisturbed tomb, he is blasted by a green ray that emanates from a seated and cowled figure.

The Fourth Doctor and Sarah Jane Smith are still on their way back to UNIT headquarters in the TARDIS. At the same moment as the tomb is disturbed, the TARDIS is forced out of its flight path and Sarah sees an apparition of an alien, jackal-like face in the console room. The Doctor comments that a mental projection that could have this effect on the TARDIS would be powerful beyond imagination. The Doctor follows the energy source back to its point of origin and lands the TARDIS in the Scarman family home, a former priory somewhere in England.

The Doctor and Sarah explore the priory and find what appear to be Egyptian artifacts in the storeroom in which the TARDIS materialised. Discovered by the butler, they are told that the house has been taken over by a mysterious Egyptian gentleman by the name of Ibrahim Namin. The butler urges them to leave. As he turns to inspect the room after the Doctor and Sarah's departure via the window, a sarcophagus lid is seen to be moving.

In another part of the priory, Namin is being confronted by Dr. Warlock, an old friend of Professor Scarman, but their heated debate is interrupted by a scream. Warlock and Namin find that the scream came from the butler, who has been strangled to death in the storeroom. Namin shoots Warlock in order to prevent him from going for help. The Doctor, who has witnessed the argument and heard the scream, prevents the shot from being immediately fatal by using his scarf to pull the gun in Namin's hand. The three make their escape into the grounds of the estate. Instead of following, Namin removes the lid of another sarcophagus to reveal a mummy. Holding up his ring, he commands the mummy to activate and orders it to pursue them.

The Doctor, Sarah and Warlock hide in the woods until the pursuing mummies are called off the hunt by Namin, who is summoned to the central room of the house by a blast of organ music. The three fugitives make their way to a hunting lodge in the grounds that is used by Laurence Scarman, Professor Scarman's brother, as a home. Laurence is an amateur scientist whose marconiscope has intercepted a signal from Mars. The Doctor uses a more portable device to decode the signal as "Beware Sutekh".

The Doctor explains that Sutekh is the last of a powerful alien race called the Osirans, a paranoid megalomaniac who came to believe that all life was his enemy. He was pursued across the galaxy by his brother Horus and was finally defeated on Earth by the combined might of 740 Osirans. The Doctor returns to the house in order to formulate a plan to stop Sutekh, followed by Sarah and Laurence Scarman.

Namin and the mummies — really service robots — greet the arrival of Sutekh's servant who travels to the priory via a spacetime tunnel, the portal of which is disguised as an upright sarcophagus. The Servant of Sutekh appears as a dark-helmeted humanoid figure dressed in black. The Servant ignores Namin's pleas for his life and kills him, declaring that Sutekh needs no other servant.


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After killing Namin, the Servant transforms into Marcus Scarman, although he appears to be an animated corpse. Scarman then uses the spacetime tunnel to communicate with Sutekh, immobile in his pyramid, who orders Scarman to secure the perimeter of the estate and to construct an Osiran war missile. After Scarman and the robots leave to execute their orders, the Doctor, Sarah and Laurence Scarman enter the main room. The Doctor locates the spacetime tunnel but accidentally activates it and is nearly dragged through. He disrupts the tunnel using the TARDIS key and is knocked unconscious by the energy discharge. Laurence hides the three of them in a priest hole for fear of being discovered by his brother.

In another part of the estate, a poacher, Clements, finds a mummy trapped one of his snares. He retreats but is prevented from escaping the estate by the deflection barrier that Sutekh has ordered to be generated in order to secure the perimeter. Once Scarman has finished placing the generators, he finds Warlock and questions him about the other people within the barrier. Clements hears Warlock's death scream and tracks Marcus Scarman back to the house.

While in hiding, the Doctor realises that he will be able to stop Sutekh controlling his Servant and the mummies by using Namin's ring and Laurence Scarman's scientific apparatus. Marcus Scarman is prevented from finding them by the sudden appearance of Clements. Clements fires his shotgun at Marcus Scarman's back and is amazed to see the explosion reverse and all damage healed. Clements panics and retreats, pursued by the robots.

The Doctor locates Namin's corpse and retrieves the ring. All three proceed into the TARDIS to avoid detection. Laurence is amazed by the dimensionally transcendental nature of the TARDIS. Sarah suggests they should just leave in the TARDIS, because they know that the world did not end in 1911. The Doctor demonstrates otherwise by moving the TARDIS forward in time to 1980. There, the TARDIS doors open onto a blasted wilderness, with thunder, rain and lightning hammering down on to ash fields. Sarah understands that they have no choice but to return to 1911 and stop Sutekh, or the future will be lost.

The TARDIS returns to 1911 and the three retreat to the hunting lodge in order to jury-rig a jamming unit to prevent Sutekh controlling his servants. Laurence finds it too hard to deal with the Doctor's assertion that Marcus Scarman is dead and that the being with his appearance is just a puppet. Laurence overhears the Doctor telling Sarah that when the jamming device is activated, all of Sutekh's servants will stop, Marcus Scarman included.

At the crucial moment when the device is activated, Laurence attempts to stop it from happening. The robots overrun the hunting lodge after finding and killing Clements. They knock Laurence out and throw the Doctor to the floor.


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One of the robots attacks the jamming device and is disabled by a sudden discharge of power. Sarah is threatened by a robot, but the Doctor tells Sarah to grab the ring that they took from Namin and order the robots to return to Control. Sarah does so and the robots obey.

Surveying the ruined equipment, the Doctor decides that the only thing that he can do is to blow up the partially-assembled rocket in the stable courtyard of the Priory. Laurence suggests using blasting gelignite, a supply of which Clements in his hut on the estate. The Doctor and Sarah leave to locate the gelignite, ordering Laurence to strip the bindings from the now deactivated robot left in the hunting lodge.

The Doctor finds the energy barrier and, with Sarah's help, deactivates a generator loop in order to get through. The deactivation is detected by Sutekh, who orders Marcus Scarman to investigate. Marcus finds Laurence in the hunting lodge. Laurence tries to make Marcus remember his childhood in order to revive his humanity, but fails, and Marcus tortures Laurence in order to find out more about the Doctor.

The Doctor and Sarah find the gelignite and hide it near the rocket before returning to the lodge. There they find Laurence in a rocking chair, strangled, and a robot stripped of its bindings. The Doctor asks Sarah to disguise him in the bindings in order for him to place the gelignite on the rocket without being detected.

However, when Sarah detonates the gelignite by shooting it with a hunting rifle, they see the explosion pause, then retreat back upon itself. The Doctor realises that Sutekh is holding back the detonation using mental power alone and that the only way to destroy the missile is travel to Sutekh's prison using the spacetime tunnel and distract him. As he enters the chamber and calls out Sutekh's name, the last of the Osirans turns in response. On Earth, the explosion consumes the rocket. Angered, Sutekh paralyses the Doctor with a blast of mental force.


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Sutekh interrogates the Doctor and discovers that he is a Time Lord from Gallifrey. Declaring that he will turn the Doctor into his plaything, Sutekh locates the TARDIS and decides to use it to transport Scarman to the Pyramids of Mars in order to deactivate the Eye of Horus, the force that is trapping him. The Doctor avoids being killed by claiming that the TARDIS controls are isomorphic, meaning they respond to him alone. Sutekh subjects the Doctor to mind control and returns him to the priory as another of his servants. He then orders Scarman to bring a robot and Sarah into the TARDIS to travel to Mars.

On Mars, Sutekh orders Scarman to dispose of the Doctor and the robot strangles him. Scarman and the robot then find the way out of the first chamber beneath the pyramid and leave Sarah weeping over the Doctor. The Doctor then wakes up, revealing that his respiratory bypass system allowed him to avoid death, and they then set off in search of Scarman.

The Eye of Horus is located at the end of a corridor beneath the pyramid. The corridor is divided in to a series of chambers and progress through the chambers is dependent upon solving logical and philosophical problems. Sutekh navigates Scarman and the robot through each problem with no deliberation but the Doctor and Sarah are slower. At the last puzzle, a transparent cylinder materialises around Sarah. The voice of Horus tells the Doctor that the chamber has two switches and that he is allowed to ask one question of one Guardian of Horus. The Guardians materialised at the same moment as the Crucible and are mummy robots swathed in gold bindings. There is not much time as Sarah has a limited air supply within the chamber and will suffocate unless he can find out from them which is the right switch to activate. One robot will always tell the truth and the other always lie, but which is which?

Since the Guardians are contra-programmed so that one will always give a false answer, the Doctor asks one Guardian, if he were to ask the other Guardian which was the life switch, which would the other indicate? The Doctor reasons that if the Guardian he asks tells the truth then it must indicate the death switch and that if it is the liar then it would still indicate the death switch. The Doctor presses the other switch and the chamber and Guardians disappear, freeing Sarah.

Scarman and the robot reach the chamber containing the Eye of Horus. Another Guardian of Horus appears and does battle with Sutekh's robot. Sutekh realises that he is moments away from freedom and channels all of his power through Scarman in order to destroy the Eye of Horus. Scarman momentarily transforms into the jackal creature Sarah saw earlier in the TARDIS and destroys the Eye before falling to the floor and decaying to dust in an instant. Arriving too late, the Doctor looks back and sees the bulkhead doors open one by one, revealing the TARDIS at the end of the corridor. He realizes that the time factor can still save them.

Back in the priory, the Doctor exits the TARDIS at a run, holding a piece of the TARDIS console. He runs to the main room of the priory and attaches the device to the spacetime tunnel. Sutekh appears in the tunnel, travelling towards the exit, but he cannot seem to reach it. He pleads with the Doctor to release him, but the Doctor simply turns the dial and Sutekh recedes screaming. The Doctor declares that Sutekh lived for about 7000 years. The Doctor explains that time control from the TARDIS shifted the mouth of the spacetime tunnel into the far future, which Sutekh could never hope to reach. They had two minutes to return to Earth from Mars and set the trap because this is the amount of time that it takes for radio waves to propagate between the two planets.

As the Doctor and Sarah pack up and prepare to leave, a thermal imbalance in the time tunnel causes it to catch fire. The Doctor remembers that the UNIT headquarters was built on the remains of a burnt priory and the two decide to leave it alone, re-entering the TARDIS and dematerialising. Outside, the priory is consumed in flames.

Cast
Doctor Tom Baker (Fourth Doctor)
Companion Elisabeth Sladen (Sarah Jane Smith)
Guest stars
Gabriel Woolf — Sutekh
Bernard Archard — Marcus Scarman
Michael Sheard — Laurence Scarman
Peter Copley — Dr Warlock
Michael Bilton — Collins
George Tovey — Ernie Clements
Peter Mayock — Namin
Vic Tablian — Ahmed
Nick Burnell, Melvyn Bedford, Kevin Selway — Mummies

Production
Writer "Stephen Harris" (Robert Holmes and Lewis Greifer)
Director Paddy Russell
Script editor Robert Holmes
Producer Philip Hinchcliffe
Executive producer(s) None
Production code 4G
Series Season 13
Length 4 episodes, 25 minutes each
Originally broadcast October 25–November 15, 1975

source: wikipedia

Series 13: Planet of Evil

The TARDIS picks up a distress call and the Doctor and Sarah arrive on the planet Zeta Minor. There they discover that a Morestran geological expedition has fallen prey to an unseen killer and only the leader, Professor Sorenson, remains alive.

A military mission from Morestra has also arrived to investigate. The culprit is revealed to be a creature from a universe of antimatter, retaliating for the removal by Sorenson of some antimatter samples from around the pit that acts as an interface between the two universes.

The Morestrans take off in their ship, but it is slowly dragged back towards the planet due to the antimatter on board. Sorenson himself becomes infected by antimatter and gradually transforms into antiman, a monster capable of draining the life from others.

The Morestran commander, the increasingly unhinged Salamar, attacks Sorenson with a radiation source but this only causes him to produce multiple anti-matter versions of himself, which soon overrun the ship. The Doctor finds the original Sorenson, takes him back to the planet in the TARDIS and throws both him and his samples into the pit, fulfilling a bargain he earlier made with the anti-matter creature. Sorenson reappears unharmed, and the Doctor returns him to the Morestran ship, which is now freed of the planet's influence.

Cast
Doctor Tom Baker (Fourth Doctor)
Companion Elisabeth Sladen (Sarah Jane Smith)
Guest stars
Frederick Jaeger — Sorenson
Ewen Solon — Vishinsky
Prentis Hancock — Salamar
Graham Weston — De Haan
Louis Mahoney — Ponti
Michael Wisher — Morelli
Terence Brook — Braun
Tony McEwan — Baldwin
Haydn Wood — O'Hara
Melvyn Bedford — Reig

Production
Writer Louis Marks
Director David Maloney
Script editor Robert Holmes
Producer Philip Hinchcliffe
Executive producer(s) None
Production code 4H
Series Season 13
Length 4 episodes, 25 minutes each
Originally broadcast September 27–October 18, 1975

source: wikipedia

Series 13: Terror of the Zygons

On an oil rig off the coast of Scotland, a strange, high pitched beeping sound echoes through the structure, and it begins to break apart, collapsing into the North Sea.

The Fourth Doctor, Harry and Sarah hitch a ride with a passing motorist to the town where the Brigadier and UNIT have set themselves up in an inn. The Brigadier is talking to Huckle, an official of Hibernian Oil, who owned the rig. Huckle complains that three such rigs have been destroyed in the last month, two of them belonging to Hibernian. The Brigadier assures Huckle that UNIT is also concerned, especially about the loss of life.

The Doctor, Harry and Sarah arrive at the Inn. It turns out that their ride is the Duke of Forgill, a local landowner. The Duke warns Huckle that if his men are caught trespassing on his land, they will be shot. He also wants to know what UNIT are doing here, but the Brigadier says that it is a sensitive matter. Though not pleased, the Duke leaves.

On the shoreline, a survivor of the destroyed rig washes up, just barely alive. The Brigadier brings the Doctor, Harry and Sarah to Hibernian Oil, where Huckle briefs them on the injuries of the rigs' crew. Harry decides to examine the injuries at the Sickbay, while Sarah goes to talk to some of the locals. Huckle cannot understand it: the rigs were designed to be unsinkable, and the seas were calm and empty prior to the incidents. The Doctor darkly notes that the sea is never empty.

Back at the Inn, Sarah talks to Angus, the landlord. Sarah admires a stuffed stag's head above the fireplace, a gift from the Duke just this past week. Angus observes that the Duke has not been himself since the oil companies came. His servants have left to work for them, leaving Forgill Castle cold and empty. All this while, something alien watches her and Angus on a monitor screen. Angus tells Sarah about Tulloch Moor and how people have disappeared over the centuries when the mist came down. Sarah is sceptical, however — evil spirits do not destroy oil rigs.

The rig survivor, Munro, is spotted by the Duke's man, the Caber, as Munro staggers from the surf. Harry is driving by and sees Munro too, and goes to him as Munro collapses. Before Munro can tell Harry about what smashed the rig, the Caber fires a rifle, killing Munro and creasing Harry's forehead with a second shot. Harry falls, unconscious. Back at the Inn, the Doctor is working on a radio probe to check for localised jamming when a call comes in informing them about Harry.

Alien hands manipulate strange, organic controls. A high pitched beeping summons a creature from the depths that heads towards the Ben Nevis rig. The rig's communications with Huckle are suddenly jammed by the beeping.

The Doctor and Sarah visit Harry, who is sedated and being looked after by Sister Lamont, the nurse. The Brigadier arrives, telling him of the Ben Nevis rig's destruction. Sarah stays with Harry while the Doctor goes with the Brigadier. Outside, the Doctor spots a piece of wreckage from the earlier rig with some odd holes in it. The Doctor asks Sergeant Benton for some plaster of Paris, and makes a mould of the holes, revealing that something with very large teeth had bitten into the rig. The aliens, watching, decide that the Doctor knows too much and must be destroyed.

Harry awakens. Sarah goes to inform the Doctor, while Sister Lamont tells Harry that he will be very well looked after. A high pitched beeping echoes through the room, and Harry looks up in fear. As Sarah calls the Doctor, a suction-tipped hand clamps down on her shoulder. She turns and is grabbed by a large, orange biped: a Zygon.


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The Doctor hears Sarah's cries over the telephone and rushes over to the Sickbay. When they get there, Sister Lamont tells them that she found Sarah gone and Harry's bed empty. The Doctor snoops around further, and finds Sarah hiding in a decompression chamber. As Sarah starts telling the Doctor about what happened, a Zygon locks them in and starts to remove the air from the chamber. The Doctor hypnotises Sarah into not needing to breathe, then places himself in a similar trance.

Harry is brought to the Zygon ship deep underwater, where he meets their warlord, Broton. Harry is told that centuries ago, their spaceship was damaged and they landed on Earth. They were waiting for rescue when they heard that their world had been destroyed in a stellar explosion. Now, they intend to claim Earth for their own, using the sea monster under their command, an armoured cyborg of great power. Broton explains that the Zygons depend on the lactic fluid of the Skarasen, and Harry realises that if the monster is destroyed, the Zygons will die. Broton declares that no human weapon can affect the Skarasen.

The Brigadier is briefing one of his officers at the Inn when gas floods the room, knocking them all out. Meanwhile, Benton has found the Doctor and Sarah. He manages to open the pressure door, and with air restored, the Doctor exhales and awakens, carefully reviving Sarah. He tells Benton that the trance was a trick he picked up from a Tibetan monk.

Benton, Sarah and the Doctor discover that the entire village has been drugged by some kind of nerve gas, but they soon revive. The Doctor deduces that this was done so that something could get around unseen. The Zygons watch Huckle give the Doctor a device he found in the wreckage: the signal device that summons the Skarasen. Broton says it must be recovered. Harry is taken to another room in the ship, where he sees other humans hooked up to booths, providing the Zygons with "body prints" that they use to assume human form.

The Doctor hypothesises that the signal device sends out a kind of primeval mating call, attracting the beast to whatever it is attached to. The savaged body of a UNIT soldier is found on the Moor and the Doctor and the Brigadier go to see it, leaving Sarah behind in case Harry turns up. He does, but it is his Zygon duplicate. He takes the signal device, saying that the Doctor asked him to collect it. Sarah notices his curious behaviour and questions him, but he pushes her aside and runs away. Sarah and some soldiers pursue him.

Sarah discovers "Harry" hiding in an upper level of a barn, and he attacks her with a pitchfork. She steps aside at the last moment and he falls, injuring himself fatally and turning back into a Zygon. The signal broken, Broton realises his man is dead, and remotely disintegrates the corpse. Harry, however, is freed from his body print booth.

Sarah wonders how the aliens knew that they had the signal device. The Brigadier orders the Inn to be searched for bugs. Seeing this, Broton in turn orders that the Skarasen be unleashed, even if it means revealing their presence on this planet. The signal device begins to beep. The Doctor grabs the device to lure the creature away while the Brigadier tries to get a fix on the activating signal.


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The Skarasen catches up to the Doctor on the Moor, and he finds that he cannot get rid of the semi-organic signal device which has fastened itself to his palm. The Brigadier manages to trace the incoming signal to Loch Ness. As the Doctor stumbles, Broton orders the Skarasen to destroy him.

Harry rushes into the Zygon control room and randomly hits the controls, causing the device to fall off the Doctor's palm and allowing him to roll out of the Skarasen's way. Since the device is dead, Broton assumes that the Doctor is, too and recalls the Skarasen. The Doctor retrieves the device and makes his way back across the Moor as the Skarasen glides away. In the ship, Harry is dragged away by the other Zygons.

The Doctor is met halfway by the Brigadier and Sarah, who tell him that the signal came from Loch Ness. The Doctor decides to go visit Forgill Castle, which is right next to the loch. They get a frosty reception from the Duke, who does not believe them when they tell him about the monster, aliens and their intention to drop depth charges in Loch Ness.

At the Inn, Angus discovers the Zygon surveillance link in the stuffed deer head that was the Duke's gift. As he tries to pry it loose, Sister Lamont enters the Inn. Before his eyes, the sister turns into a Zygon and kills him, removing the link after. Angus's dying cries are heard by Benton and some UNIT soldiers, who discover the body and go off in pursuit of the killer. The UNIT troops sweep through the nearby forest, and fire on the Zygon.

The Brigadier is informed that a Zygon is being cornered. He and the Doctor leave Sarah behind at the Castle to research into the monster. In the woods, the wounded Zygon disguises itself once more as Sister Lamont, and fools a UNIT soldier long enough to knock him out and steal his jeep. At the Inn, the Doctor notices the missing eye in the deer head, and realises that the Duke might be a Zygon facsimile.

At the Castle, as Sarah examines the upper bookshelves, she triggers a hidden switch and a section of the bookcases slides open, revealing a hidden passage. She takes a torchlight and goes in, following a long dark tunnel that leads to the Zygon ship. The "Duke" (in reality Broton) discovers the open bookcase. He and the "Caber" take the wounded "Sister Lamont" down into the ship; the crew must be alerted and the intruder found and destroyed.

Exploring, Sarah finds the cell where Harry is being kept. She frees him and they sneak back to the Castle, just in time to meet the Brigadier and the Doctor. Sarah tells the Brigadier about the Zygon ship. The Doctor enters the tunnel, but does not get far a scream is heard. The Zygons emerge in their true forms, Broton telling the humans that they are leaving, with the Doctor as their prisoner. He warns them that the oil rigs were only a test; the "big event" is yet to come. Broton then retreats, sealing the entrance to the tunnel.

The Brigadier orders the loch to be depth charged, to try and bring the Zygon ship to the surface. The Zygon ship does rise, but keeps on rising into the sky, flying away.


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Broton orders a jamming signal to be transmitted to block the humans' radar tracking systems. The Brigadier prepares to move his troops out, but Sarah and Harry suggest they search Forgill Castle before they leave to see if they can find a clue to the Zygons' plans. There, Sarah finds some papers that indicate the Duke is the President of the Scottish Energy Commission, but Harry dismisses the information as useless. They return with the Brigadier to London.

The Zygon ship lands in a disused quarry, with UNIT unable to track it as radar stations are knocked out all over the country. However, there are reports of a large underwater object heading South at high speed. Broton enters the Doctor's cell and, taking the Duke's form again, tells him that Phase I of the conquest of Earth is complete. A great Zygon refugee ship is on its way, but will take some centuries to arrive. In the meantime, Earth's environment must be restructured, using human labour and Zygon technology to turn it into a new homeworld.

Left alone, the Doctor rigs some of the organic technology in his cell, electrocuting himself but sending a transmission to aid UNIT in tracking the ship to the quarry. By the time Broton and his men manage to open the Doctor's cell door, the Doctor is apparently dead. However, when Broton leaves, the Doctor comes to. He makes his way to the body print chamber and frees the real Duke, Sister Lamont and the Caber.

Broton leaves the ship to plant a signal device on his intended target, which the Skarasen will then destroy, proving the power the Zygons hold. When Phase II is complete, he will broadcast his demands to the world. Inside the ship, the Doctor uses his sonic screwdriver to set off the fire sensor, triggering an alarm. When the Zygons go to investigate, the Doctor ushers the humans out of the ship, jamming the hatches on the way out and activating the ship's self destruct.

The Brigadier has arrived, and the escapees reach UNIT's position, the Doctor shouting for everyone to get down just before the Zygon ship explodes. However, Broton is still out there and has control of the Skarasen. The target is in London, and has to be close to the River Thames. The Brigadier says that Prime Minister will be attending a conference at Stanbridge House, near the river. The Duke adds that it is the 1st International Energy Conference, with delegates from all over the world in attendance. As the Duke is the President of the Scottish Energy Commission, Broton will have a pass into the meeting. They leave for London.

The "Duke" places the signal device in the basement of Stanbridge House, while the Skarasen has been sighted mere minutes away. The Doctor finds Broton, back in his true form, who swears he will make sure the Doctor is dead this time and attacks him. Sarah calls for the Brigadier, who arrives to shoot Broton dead. The Doctor finds the signal device in his pocket, and feeds it to the Skarasen as it rises out of the Thames. After it consumes the device, the beast sinks back into the river and heads back to Loch Ness, the only home it has ever known.

Returning to Scotland, the Brigadier tells the Duke that the incident will be kept quiet, even the appearance of a fifty foot monster in the Thames. The Doctor leads them into the woods where the TARDIS is, and offers all of them a lift, but the Brigadier and Harry decline. Sarah agrees on the condition they do go straight back to London. The Doctor promises, and the TARDIS takes off. The Duke tells the Brigadier that, as a Scotsman, he should have gotten a refund for Sarah and the Doctor's return train tickets.

Cast
Doctor Tom Baker (Fourth Doctor)
Companions Elisabeth Sladen (Sarah Jane Smith)
Ian Marter (Harry Sullivan)
Guest stars
Nicholas Courtney — Brigadier Lethbridge-Stewart
John Levene — RSM Benton
John Woodnutt — Duke of Forgill/Broton
Lillias Walker — Sister Lamont
Robert Russell — The Caber
Keith Ashley, Ronald Gough — Zygons
Angus Lennie — Angus
Tony Sibbald — Huckle
Hugh Martin — Munro
Bruce Wightman — Radio Operator
Bernard G. High — Corporal
Peter Symonds — Soldier

Production
Writer Robert Banks Stewart
Director Douglas Camfield
Script editor Robert Holmes
Producer Philip Hinchcliffe
Executive producer(s) None
Production code 4F
Series Season 13
Length 4 episodes, 25 minutes each
Originally broadcast August 30–September 20, 1975

source: wikipedia