Penzance bakers Phil and Christine attempt their tallest bake to date with a nine foot sign post cake. Eloise tackles some heavy lifting with an edible kettle bell cake for a gym opening, and Nastassja makes a birthday cake that's out of this world.

Tattoo artist turned cake maker Ben faces a huge challenge as he creates a caricature of someone playing a guitar in cake form! Molly takes the plunge with a scuba diving dog cake and Nastassja creates a ruffled wedding cake inspired by flamingos.