BBC America has released the official trailer for the upcoming Doctor Who Christmas Special. Called Twice Upon a Time, the episode will mark the end of Steven Moffat's tenure as Doctor Who showrunner and Peter Capaldi's time as the Doctor, and we'll see Capaldi's regeneration into new Doctor Jodie Whittaker. Chris Chibnall takes over as showrunner for the next season.
But until that regeneration, we're getting one more trip in the TARDIS with Capaldi, along with companion Bill (played by Pearl Mackie), and to that end the trailer focuses on Capaldi's interaction with David Bradley, playing the first incarnation of the Doctor. Watch it below.
The magical final chapter of the Twelfth Doctor's (Peter Capaldi) journey sees the Time Lord team up with his former self, the first ever Doctor (David Bradley – Harry Potter, Game of Thrones) and a returning Bill Potts (Pearl Mackie), for one last adventure.
Two Doctors stranded in an Arctic snowscape, refusing to face regeneration. Enchanted glass people, stealing their victims from frozen time. And a World War One captain destined to die on the battlefield, but taken from the trenches to play his part in the Doctor's story.
An uplifting new tale about the power of hope in humanity's darkest hours, Twice Upon A Time marks the end of an era. But as the Doctor must face his past to decide his future, his journey is only just beginning.
'Twice Upon A Time' premieres Christmas Night at 9/8c on BBC America.