剧情简介：

"Space"

Amy is trying to get the Doctor＇s attention while he fixes the TARDIS. She discovers that Rory is helping the Doctor by installing thermal couplings underneath the glass floor of the TARDIS. Rory and Amy then start a small argument, when the TARDIS suddenly shakes and the lights go out. The Doctor asks Rory if he dropped a thermal coupling, which Rory admits to and apologizes for doing. Amy then apologizes as well, and, at the Doctor＇s confusion, explains that Rory was looking up her skirt through the glass floor when he dropped the thermal coupling. The Doctor then notes that they have landed through "emergency materialization" which should have landed the TARDIS in the safest space available. The lights come on, revealing another TARDIS inside the control room - the TARDIS has materialized inside itself. The Doctor experimentally walks through the door of the TARDIS inside the control room and instantly walks back into the control room through the door of the outer TARDIS. The Doctor tells Rory and Amy that they are trapped in a "space loop" and that nothing can enter or exit the TARDIS ever again. Despite the Doctor＇s words, another Amy enters through the TARDIS outer door saying "Okay kids, this is where it gets complicated."