Summary: The Carters are an everyday working-class family from Milton Keynes - until 11-year-old Harry creates a social networking app that takes the world by storm. Snapped up by American tech tycoon Trent Zebrisky for £10m, his app turns the family into overnight multimillionaires.

Summary: Liz and Tony go away for the night leaving the hapless Oliver in charge and Harry takes advantage of his parents' absence and his new popularity by throwing a house party.

Summary: Tony decides it is time to teach his millionaire son the value of money, while Liz and Ellie get caught in a sticky situation when they check out a luxury mansion.

Summary: The house gets hectic when Trent and his entourage come to stay, while Harry's school report is far from satisfactory so Liz pays a visit to his teacher.

Summary: Tony signs a reluctant Harry up to the Wildboys' Wilderness Survival group, while things quickly start to go wrong when Liz tries to connect with Ellie online.

Summary: Harry gets caught in the firing line when a kid from computer camp claims he invented Honc, but things do not go according to plan when Liz and Tony try to help. Last in the series.