Why did the Doctor leave Gallifrey , Twice Upon A Time, Doctor Who, BBC

The Twelfth Doctor meets a familiar face from his past, whilst the First Doctor is confronted by Bill about why he left Gallifrey. Subscribe to Doctor Who for more: WATCH MORE DOCTOR WHO: Series 10: The Twelfth Doctor: The Thirteenth Doctor: From the 2017 Christmas Special Twice Upon A Time TWICE UPON A TIME Two Doctors stranded in a forbidding snowscape, refusing to face regener