Peter Capaldi's magical final chapter as the Twelfth Doctor sees the Time Lord team up with his former self, the First Doctor (David Bradley, Game of Thrones, Harry Potter) and a returning Bill Potts (Pearl Mackie), for one last adventure. <p> 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. <p> 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...