rescue her. The Doctor locks onto Amy's time stream. The Doctor, unable to leave the TARDIS due to the plague, gives Rory the lens, his sonic screwdriver, and a pair of glasses through which the Doctor can see and communicate with Rory. Rory explores the complex, and finds an older and bitter Amy, who has been waiting to be rescued for 36 years while hiding from the Handbots. The Doctor realises they have mistakenly latched onto the wrong time stream, and urges the older Amy to help find her younger self. She refuses, knowing that if the younger Amy is rescued, she will cease to exist. The Doctor warns Rory that, by taking the older Amy aboard the TARDIS, they will forgo any chance of rescuing the younger Amy. The younger Amy convinces the older Amy to change her mind by asking her to consider Rory. The older Amy agrees to help, if the Doctor would take her, too. The Doctor temporarily brings the two Amys into the same time stream. Rory takes the younger Amy into the TARDIS. Once they are inside, the Doctor slams the door before the older Amy can enter and admits that it is impossible for both Amys to exist in the same time stream. Rory and the older Amy say goodbye at the TARDIS door before the older Amy tells him to move on without her. Continuity The episode title "The Girl Who Waited" is a reference to Amy having waited 12 years (and later 2 more years) for the Doctor to return to her in "The Eleventh Hour". When describing the facilities in the Two Streams Facility, the interface says they have a replica of the amusement park at Disneyland on Clom. The planet Clom was first mentioned in "Love & Monsters" as the home planet of the Abzorbaloff and the twin planet of Raxacoricofallapatorius. Production Tom MacRae, the writer of the episode, had previously written the two-parter "Rise of the Cybermen"/"The Age of Steel" for the second series, which featured the return of the Cybermen. As bringing back the Cybermen had limited plot opportunities and put MacRae in the "second seat" as a writer, he was pleased that he had the opportunity to do whatever he wanted. MacRae was proud of the finished script, calling it his "most accomplished piece of plotting ever". The original title of the episode was "The Visitors'