Tonight's episode:
The four remaining teams (from the sesond batch of five) of professional pastry chefs once again face the scrutiny of judges Cherish Finden and Benoit Blin in Britain's toughest patisserie competition, hosted by Angus Deayton.
The first testis the fastest so far. No detail is left unscrutinised in a miniature challenge that requires the teams to master petit gateau, creating 36 identical petite charlottes and 36 shaped macarons in just two hours.
For their final challenge, the teams must put an innovative spin on the classic towering French celebration cake, the croquembouche. Who can reach new heights and create a skyscraping choux bun showpiece in just four hours and who will face a dramatic fall from grace and the disappointment of leaving the competition?