The five pampered teens make their way back to one of the thousands of factories in the capital of Cambodia, Phnom Penh. They get the chance to make one of their favourite things - onesies! - but it's much more difficult than it looks. In the very strict onesie factory it's boys v girls and one team comes unstuck very quickly. Can they get back in the boss's good books? Outside the factory gates, the team also have to come to terms with the poverty they find there, and the girls have to go back to school - in a slum.