Millonaire property developer Immanuel and his adult children swap homes, lives and budgets with single mum Amy and her two kids.

Successful vets Colin and Lizzy Whiting enjoy spending their disposable income on antiques. Marine engineer Ross Timmins and his wife Sarah, a hairdresser, work hard to budget what fund they have.

James wants to help episode buddy Antony realise his dreams of attaining a physics degree. Karate entrepreneur Matt has taken Andy under his wing, and finding out if bin lady Sharon's situation has changed.

The well off 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.

The Webb family leave their rented three-bedroom maisonette on an estate to live in the Heasman family's luxury 16th-century farmhouse set in six acres in rural Essex.

Single mother Claire Lee leaves her terraced home in Wolverhampton to live in a 5-bedroom home belonging to cardiologist and paediatrician Mahrous and Rana Alsoud.

The Page family swap their eight bedroom house in West Yorkshire for a week in the Hollands' three-bed council house in Hartlepool

The Emmotts enjoy a budget of £1300 per week, affording golf, tennis, music and triathlon training. The Blakes have only £125 of disposable income, so treats include walks in the park and film nights. They swap lives to see how the other half lives.

The wealthy Jones family swap their ten-bedroom Victorian mansion for the Robinson family's three-bed council property.

Rich retired couple Shahid and Riffat have worked hard all their lives planning for their retirement, managing to build their own home. Cleaner Kelly spends all her attention and money on her two sons, who live with her in their council house.

The Hays are in the wealthiest 10 percent in Britain. The Hellings are in the poorest 10 percent. How will they both adapt to each other's lives?

The Haslams have three children, twelve restaurants and £3,000 to spare a week. The Brimicombes have four kids but only £140 a week to spend. How will the two families handle swapping lives, homes and budgets?

The Sethard-Wrights from Orpington swap homes, budgets and lives with the Walker family from Bromley. The two families live just five miles away from each other but their financial circumstances are worlds apart.

Paul Walker and Victoria Maude have a weekly post-bills budget of £1,716, while Steve and Naz Edney have around £168 per week to spare. The Edneys hope that the swap will inspire their kids to work hard.

Sam and Richard Flint and their four children from a seven bedroom house in Hertfordshire change places with Nora and Lahoussine Elayadi and their three children, who love in a two bedroom council flat in Ealing, West London.

The Colemans are in top tier for wealth, with a four bedroom house and a weekly budget of £1,800. However, the Morgans are among the poorest with a weekly budget of just £158 - less than a tenth of the Colmans.

In Bournemouth, the Hansen and Gittings families swap homes, budgets and lives. They live just three miles away from each other, but their financial circumstances are worlds apart with the Hansen's among the wealthiest and the Gittings the poorest.

Families from series 2 and 3 reveal what happened when they met for the first time after living each other's lives.

Property developer Claire Donovan and her family swap homes and lives with DIY warehouse worker Jason White and his brood.

Terri-Ann Nunn went from a council flat to a life of luxury thanks to her diet business. The Ross family squeeze five kids into a three-bed renter.

The Leamon family leave their four bedroom terrace house on a council estate to live in the Fiddles family's six bedroom house set in sixty acres.

The Hornans are among the wealthiest in Britain, with luxury holidays, swimming lessons and a weekly budget of more than £2k. The Llewellyns are among the poorest, and dream only of owning their own home with a garden for the kids to play in.

Single mother Andrea swaps her two-bedroom community housing in Lambeth for Geeta's GDP7m four-storey townhouse in Chelsea.

Bristol's Caddy family trade places with the Williams family from Weston-super-Mare. The Caddys spend more than £1700 per week, compared to the Willams's £110 weekly budget.

The Scaife-Lacy family are used to a weekly budget of £2,700, which they splash out on skiing trips. Restricted to around £170 each week, the Flinthams and their four children make do with free activities.