The Doctor, Amy, and Rory find themselves experiencing events in two realities, falling asleep in one and waking in the other. In one, on Earth five years after Amy traveled with the Doctor and now pregnant with Rory's child, they find themselves in Amy's hometown of Leadworth, chased by the Eknodine, an alien race that have disguised themselves as the elderly of the town and who are able to turn anyone else into dust simply by breathing on them. In the other, they are trapped in the powerless TARDIS floating towards a freezing cold star which will kill them shortly. During one of their experiences in the TARDIS-reality, they are met by the "Dream Lord", who tells them that he created this trial, which they can only escape from by being killed in the false reality; death in the true reality will be permanent.
Eventually, the Dream Lord keeps Amy awake in the TARDIS-reality while the Doctor and Rory fall asleep and return to the Leadworth-reality. The Dream Lord questions Amy as to who she would choose between Rory and the Doctor; he states that she should choose between the worlds, because one leads to a peaceful married life with Rory while the other leads to adventure and excitement with the Doctor.
Amy returns to Leadworth, and joins Rory and the Doctor defending her house from the Eknodine. Amy starts going into labour, forcing Rory to sacrifice himself to protect her, and he is turned into dust. Amy decides that she is willing to risk her own life for the chance of seeing Rory again, and concludes the Leadworth-reality is false; she and the Doctor ram into the house in a camper van, killing them both along with the Eknodine inside. The three wake up again on the TARDIS, and the Dream Lord congratulates them, and reactivates the TARDIS. However, the Doctor sets the TARDIS to self-destruct, apparently killing them all.
The three wake up again on the TARDIS, no longer in any danger. The Doctor realised both realities were false, as the Dream Lord was a manifestation of his darker side. The three were influenced by psychic pollen that had fallen in the TARDIS, creating the Dream Lord and the false realities. As Amy and Rory reconfess their love for each other, the Doctor privately worries about the reappearance of the Dream Lord in his future.
* Matt Smith (Eleventh Doctor)
* Karen Gillan (Amy Pond)
* Arthur Darvill (Rory Williams)
* Toby Jones – Dream Lord
* Nick Hobbs – Mr Nainby
* Joan Linder – Mrs Hamill
* Audrey Ardington – Mrs Poggit
Writer Simon Nye
Director Catherine Morshead
Script editor Brian Minchin
Producer Tracie Simpson
Executive producer(s) Steven Moffat
Production code 1.7
Series Series 5
Length 45 minutes
Originally broadcast 15 May 2010