Weighted down with guilt and seeking to free himself from his past, the Doctor has departed from the TARDIS in a subset of the ship which takes the form of Lao Tzu's Jade Pagoda. Ruby isn’t sure what to make of the Doctor, but accompanies him when he finds a maintenance shaft leading out of the engine room up to the bridge. There, the captain and first mate also conclude that the Doctor must be a stowaway, and the Doctor, seeking to prove his credentials, learns that they are near Snowcap Tracking Station and asks to speak to General Cutler. It isn’t the same Cutler he was somehow expecting, but she proves to be very interested in hearing what he has to say for himself. Ruby still doesn’t believe the Doctor's claim to be a time traveller until she accompanies him into the Jade Pagoda, where he finds that his companions have disconnected the main TARDIS’ Time Vector Generator. When he puts it back in place the Jade Pagoda's interior dimensions are restored, much to Ruby's shock, but due to the disconnection of the TVG, the Jade Pagoda's structure is degrading, and it will be forced to return to the parent body of the TARDIS prematurely.