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?
Peter Capaldi , Jenna Coleman , Donald Sumpter , Ken Bones , Maisie Williams , T'Nia Miller , Malachi Kirby , Clare Higgins , Linda Broughton , Martin Sherman
BBC
