Self-confessed workaholic and diet entrepreneur Terri-Ann Nunn and her family exchange homes, budgets and lives with accident-repair driver Mick Ross, his wife Anne and their children. The Nunns live in a luxury six-bedroom home, complete with hot tub and gym, in west Doncaster, whereas the Rosses rent a three-bedroom council house in the east of the town. How will Terri-Ann cope with putting her business to the side - and more importantly, how will she manage without her mobile for a week?