Check out this clip from the BBC’s Doctor Who Christmas Special 2017 in which Peter Capaldi’s twelfth Doctor regenerates into Jodie Whitaker’s thirteenth Doctor.
Doctor Who Christmas Special 2017 Synopsis:
Two Doctors stranded in a forbidding snowscape, refusing to face regeneration. And a British army captain seemingly destined to die in the First World War, but taken from the trenches to play his part in the Doctor’s story.
This is the magical last chapter in the Twelfth Doctor’s epic adventure. He must face his past to decide his future. And the Doctor will realise the resilience of humanity, discovering hope in his darkest frozen moment.
It’s the end of an era. But the Doctor’s journey is only just beginning.