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.

Cake boundaries are stretched as Michelle tackles three illuminated jellyfish cakes; Nastassja creates long stemmed roses for a cake with more than 300 petals on it; and Karisha channels her inner princess and superhero for a birthday cake of two halves.

Phil and Christine push cake and engineering boundaries with a steampunk flying machine, with real smoke! Nastassja goes speaker crazy for a DJ's 30th birthday cake, and the pressure's on Suzanne to please cake-loving clients with a dream wedding cake.