The semi-final sees teams competing for the remaining places in the grand final. In this high-stakes challenge they must create a monster and their lair.
Creative Service Challenge. Contestants become artists for a creative service challenge, and the judges expect three-course masterpieces as they take inspiration from a virtual forest at digital art gallery The LUME.
In the panic room task, two housemates must build a tent in total darkness. As a punishment, the housemate must wear three shirts: a special T-shirt designed for three people to wear together.
Contestants who want to win the Big Brass Mug must answer Tom Gleeson's questions about their expert subjects: The Bible, dog breed Weimaraners, punk band Green Day and classic Aussie film Puberty Blues.
Halfway through the competition, Lord Sugar is turning up the heat. So, for this episode's task, Lord Sugar has instructed the celebs to sell, sell, sell in a massive clearance sale, but he isn't going to make it easy for the celebs.