Multimillionaire Poundland founder Steve Smith and his son Joe swap homes and lives with Jon and Kelly Deeming-Thomas and their five children. Jon and Kelly are both plasterers, but business plays second fiddle to family life, but they don't have a van or advertise their business and the debts are mounting. Meanwhile, Steve has enough money to sink the Titanic but hasn't always been present for son Joe and the swap is brilliantly poised for both families to learn lessons that could change their lives for ever.