As the Twelfth Doctor nears regeneration, he stumbles on his first incarnation, also refusing to change. It takes a captain, a glass avatar and a familiar face to convince the Doctors the universe still needs them.

"One man, one destiny, twice."

Credits

Rachel TalalayDirector

Peter CapaldiThe Doctor (12)

David BradleyThe Doctor (1)

Mark GatissThe Captain

Pearl MackieBill Potts