Peter Ho made a dramatic entrance into the warehouse on a train carrying a cargo of Lego blocks. One member from each team had to compete to see who could build the highest Lego tower in three hours – the winner would get the power to choose which contestant moved across to join Nathan on the Khaki Team. Natalia, Luke, Jarrad, Lisa, Jason H and Nathan fought for the prize, with Nathan taking the win and choosing Suzanne to join him. Robyn then revealed the White Room Challenge and the prize on offer: $10,000 from Taubmans to be spent on painters and painting. Nathan chose the theme – Retro – and the teams got to work recreating the past. The Orange Team took another win, thanks to some impressive styling from Lisa, giving them a serious leg up on the competition.