Cake duo Jamie and Joe are tackling their most challenging commission yet: a realistic model of the island of Santorini for a couple's wedding reception. Meanwhile, baker Rosie is creating a three-foot-tall cake shaped like a sitting man. With nine layers of cake for the base alone, delivering a cake of this magnitude will be incredibly challenging. Extreme bakers Pardeep and Renu are also pulling out all the stops to bring their latest creation to life in just three days -- two full-sized swans in the shape of a heart, plus a seven-tier wedding cake.

In Lancashire, Molly has received a commission that will push her baking skills to new heights as she attempts to build a life-sized, edible cow cake for the Bakewell Festival - but will it be the best in show? Elsewhere, wedding cake specialist Suzanne Thorpe hopes to impress grooms-to-be Jeffery and Thomas by individually hand sculpting over 200 sugar leaves for her stunning, succulent-themed showstopper. Also in this episode, former fashion designer Nastassja Lusengo creates a two-foot-wide edible art installation for a street art exhibition.

In this episode, husband and wife team Christine and Phil Jenson design and build two cakes for Prince Charles and Camilla the Duchess of Cornwall - but will they get the royal seal of approval? In Lancashire, Molly Robbins tackles a larger-than-life chameleon cake to raise money for a local college's new animal unit, and wedding cake designer Karisha Pithwa embarks on a five-tiered Asian wedding cake, complete with working water fountain.