Benjamin Bullock

The top 24 contestants enter the kitchen for their first mystery box challenge.

The three best performers from the invention test now compete for a chance at immunity. Will our amateur cook have what it takes to out-perform one of Australia's best chefs?

The contestants are split into teams of four in a relay challenge as each member has 15 minutes to cook and only 45 seconds to hand over to the next cook in the relay.

The losing team from the Italian service challenge face elimination. Who will be the next to leave the competition? Plus, don't miss the first MasterClass of 2017 led by judges Gary, George and Matt.

The heat is on. A fresh group of home cooks from around the country will eagerly tackle challenges that will see one of them take home the title and $250,000.

The contestants gather at Gradi, one of Melbourne's leading Italian restaurants before being split into two teams who must prepare four dishes for 250 hungry diners to avoid the elimination challenge.