Series: 9
Original Air date: December 5, 2015
Number Doctor: 12th
Companion(s): Clara Oswald
Writer(s): Steven Moffat
Director(s): Rachel Talalay
Guest Stars:
Maisie Williams as Ashildr
Malachi Kirby as Gastron
Clare Higgins as Ohila
Synopsis: If you took everything from him, betrayed him, trapped him, and broke both his hearts… how far might the Doctor go? Returning to Gallifrey, the Doctor faces the Time Lords in a struggle that will take him to the end of time itself. Who is the Hybrid? And what is the Doctor’s confession?