Presenters Sandi Toksvig and Noel Fielding, along with judges Paul Hollywood and Prue Leith, welcome four more celebrities into the tent to expose their soft centres. Broadcaster Jeremy Paxman, comedian Joe Wilkinson, actress Sally Lindsay and reality star Georgia Toffolo make characterful biscuits for their Signature challenge, followed by a Technical that leaves them nowhere to hide, and finally they make a cake in the shape of their favourite hobby. They're baking to inspire viewers to do the same and raise money for Stand Up to Cancer.