Join eight bakers as they create traybakes, classic tuiles and biscuit towers of epic proportions.

The remaining eight bakers are faced with biscuits and traybakes. The Signature challenge requires that they produce their favorite traybake, offering Mary and Paul their twists on everything from bakewells to banoffees and brownies. Next, they face the thinnest Technical challenge ever devised for the show: French classic tuiles, fragile rolls decorated with delicate designs of piped chocolate. Finally, a Showstopper of epic proportions: biscuit towers. Mel and Sue follow the trail of biscuit crumbs as the bakers produce architectural feats inspired by everything from ancient Japanese civilization to one of time travel’s most feared enemies.