Sue Perkins and Mel Giedroyc return to host the cake, bread and tart making extravaganza, and they even get to sample some of the creations on display – lucky things.
First up Mary Berry and Paul Hollywood challenge the bakers' dozen to make a simple sandwich cake – but of course they don't really want a simple one, they wants something different and original. Who will come up with a tasty treat?
Next they have to make one of Mary's recipes and finally a show-stopping chocolate cake. After the three challenges, someone will be sent home – who won't be up to scratch?
The Great British Bake Off, BBC2, 8pm