Derek Lau

The semi-finalists enter the kitchen to compete for the chance to win one of the two places in the grand finale. But before they begin the judges have a couple of surprise announcements.

The remaining five contestants fight to keep their spot in the competition. Plus, in a special MasterClass, the contestants are given the opportunity to set their own mystery box challenge for the judges and Curtis Stone.

The contestants serve up a five-course tasting menu at George Calombaris' flagship restaurant, The Press Club in Melbourne, with the winner securing a place in the semi-final.

A group of home cooks prepare their signature dishes in the first of two audition shows, hoping to get a place in the main competition.

The contestants who failed to impress in the last challenge face an elimination cook-off, producing dishes using their favorite and least favorite ingredients to cook with. Plus, there is the first masterclass.

The contestants face a challenging Pressure Test, and have 90 minutes to prepare Nigella's infamous roast chicken with two sides and gravy.