Jo and her daughter Devon go on a double date undercover as cousins, Salena braves it on a date with a bloke half her age, and Harjit and Kiran take part in a Gen Z singles night. But can the mums pass the test and convince their dates that they are 21-year-olds? And will the girls survive the embarrassment of dating with their mums? Will the maternal instinct take over when the subject turns to sexting, and will one mum's attempt to drink like one of the kids and speak their lingo give the game away? Can they get their mums to pull off being 21 again, and will the experiment bring them closer together?