'Tis the season to be jolly. And what better way to celebrate, than with the first of two Yuletide specials of Bake Off? Eight merry bakers from Bake Off past join Sandi Toksvig and Noel Fielding as they do battle in festive-themed challenges. It's down to judges Paul Hollywood and Prue Leith to decide who wins the festive Star Baker title. In this episode, Sandi, Noel, Paul and Prue return to the tent for a traditional Christmas get-together. Also invited to the celebrations are Val and Selasi, Paul Jagger and Beca Lyne-Pirkis - all of them ready to do battle in the festive fight for the Christmas Star Baker title.