In a test of their engineering skills, the six teams have to build a structure that can withstand increasing shake factors. The team that survives the highest shake factor will win immunity.
The contestants are split into three teams of seven and compete in a three-round cook-off. After the third round, the bottom six contestants are revealed and will cook off in the next episode's pressure test.
One lucky girl gets a playful date with Matt where there’s chemistry galore and massages. Matt’s best mate arrives to meet some of the girls, and at the cocktail party Matt has a romantic pash.
A double-header challenge sees the remaining teams build a tower as tall as they can in two hours. Then, in one of the hardest builds so far, they must create magic from one hanging brick - a careful measure of weight and balance.