Josh Clearihan

An immunity challenge has contestants under pressure to use ingredients from the mystery box in a race against the clock.

The team who came last in the relay challenge face elimination, and must battle it out between them to see who will be next to leave. They each have 90 minutes for buying ingredients.

The contestants participate in a relay challenge after they are split into teams of four. Challengers each have 15 minutes to cook, and just 45 seconds to pass their dish on to their team-mate.

A Melbourne Italian restaurant is the setting for a test which sees contestants preparing four dishes in two opposing teams in a fight to avoid the elimination challenge.

The top 24 face their first mystery box challenge. The bottom four cook off in an elimination challenge, resulting in one contestant being sent home.

The bottom three contestants must impress Gary in preparing his roast chicken dish to progress to the next round.