The celebrities need to design and model swimwear at a fashion show they create at Sydney's iconic Bondi Icebergs pools. But there's a surprise when Lord Sugar presents them with two new celebrities to join their teams.

Adviser Janine Allis puts up $20,000 for the team that best launches the new Boost Juice flavour: mango and barbecue sauce. The team that puts on the best performance about the new flavour, as judged by the theatre audience, wins.

The celebrities need to turn trash into treasure as they're set loose in a giant junkyard. The losing team will face Lord Sugar and two celebrities will be fired.