The doctor (11) decides to take Clara on a cruise ship adventure; where it turns out someone has been murdered and everyone are suspects. But things go a little slow when Clara gets sea sick.
[DarkTen/Rose.]
Rose finds a way to return to the Doctor after Bad Wolf Bay only to find he's changed. He's darker, almost evil, and it soon starts to feel like she's a prisoner instead of a companion. . . . But are you a prisoner when you don't even know it?