The Hellings family from Exeter are in for a real surprise when they swap with the Hays family. Not only will they exchange their small budget for over a thousand pounds but also move into the castle the Hays call home.
The Lusks, who made their money from the manufacturing industry, swap places with the Bosleys who are used to getting by on less than one tenth of the Lusks' income, brought in by mum Melanie who is a cleaner at a working men's club.
Retired couple Shahid and Riffat have dedicated their lives to helping others, while single mum Kelly spends all her attention on her two sons. As they swap homes, lives and budgets, will they both learn something about themselves?
The Heasmans live in a luxurious farmhouse with 6 acres of land in rural Essex, while the Webb family rent a tiny maisonette in a London tower block. How will the two families find their new home and budget?
Property developer Claire Donovan and her family swap homes and lives with DIY warehouse worker Jason White and his brood. Will living with a successful artist inspire Jason to make the break?
The Fiddes family from Royal Wootton Bassett rank in the top ten percent of Britian's wealthiest. They swap places with the Leamon family who are among the nation's poorest 10 per cent.
The Haslems have three children, 12 restaurants and three thousand pound a week to spare. They swap with a family with four children but a weekly budget of just 140 pounds.
The Colemans are in the wealthiest 10% in Britain, with music festivals, mountain-biking and a weekly budget of around £1,800. The Morgans cannot afford festivals with their budget of only £180.