Blake Werner

As the week in Western Australia nears its end, three of the contestants face an elimination challenge, with all of them desperate to make it through to finals week.

Five contestants take on a service challenge at a Perth restaurant, preparing five courses for 20 diners; the makers of the best two dishes will join the cook-off for a final place.

The contestants take over the menu of a train running from Queenscliff to Drysdale, preparing a four-course vegetarian menu for 30 before boarding the train to serve 30 passengers.

The top seven kick off a week of challenges in Western Australia, where their mystery boxes contain local produce such as lamb loin, barramundi, mini pumpkins and sweet mandarin.

Four cooks compete for immunity, in a challenge that sees them given the same ingredients but being told they must all cook in a different style - Spanish, French, Vietnamese and Japanese.