Top 24 Mystery Box Challenge: Elena Duggan The top 24 contestants enter the kitchen for their first mystery box challenge.

The amateur cooks are given one hour to recreate their signature dish for the first of the two judges' auditions. The judges introduce the nine past winners of the program, who are there to cheer them on.

The Queensland trip continues and the teams must cook a barbecue feast to serve 150 Noosa locals. The team that serves the least impressive feast will go into the next elimination.