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

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.

A single Essex mum who is desperate to build a better life for her young daughter swaps with a multi-millionaire couple who live a life of luxury via their hugely successful business empire.

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

A single mum with four jobs has big ambitions to start her own food business. Sue Bowers works hard. She lives in Ashby, Scunthorpe, in a two-bed terrace house with her 16-year-old son James, and works four jobs to keep afloat.

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.

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

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.

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

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

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 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 wealthy Gannon family, with wheelchair user son Ben, swap lives with Michelle and her autistic son Toby to discover how disability can lead to success and personal fulfilment.

Two families on either side of the wealth divide go in search the good life in rural Scotland, and discover the importance of community, sustainability, time - and chickens.

Wealthy father and son Mike and Sam, who run a flight school, swap lives with struggling single mum Claire and daughter Missy who dream of opening a clothes shop together.

Admin workers Bradley and Heather, crippled by childcare costs, swap places with millionaire residential developers Abi and Gordie in the hope they can get closer to owning a home.

Kim and Dave have risked everything by converting a field in Northumberland into an organic farm, growing fruit and vegetables, and raising rare-breed pigs and other animals, but rarely have time off and money is tight. They and their two children swap lives and homes with millionaire businesswoman Ampika, who lives just outside Manchester.

Single mum Geri has moved from job to job while struggling to raise daughter Scarlet and lives on under £60 a week, while millionaire businesswoman Debi has money but no work-life balance. For one week they're swapping lives, homes and budgets to find out if money really does buy happiness, with Geri heading to a luxury 18th-century home in Kent, while Debi lives in a ground-floor flat in Shoreham-on-Sea, West Sussex.

In this episode, digital marketing company CEO Kelly Filistad, her husband Rob and their two daughters trade places with Natalie and Nikki Ryan and their three children, who live on around £99 a week.

Single mum Natalee lives on £60 a week but has big dreams. A millionaire cosmetic medicine family may be able to make her dream of breaking into the beauty industry finally come true.

A wealthy couple swap with a zero-hour contract worker.

A landowner swaps his estate for a former council house.

Millionaire barrister and property entrepreneur Roy Ledgister swaps homes with single mum Becky Biggington in a life-changing experience for both.

Millionaire tech whizz-kid Harry and friend Hadia swap homes and lives with Angel and Santana. Angel and Santana live in the poor end of Notting Hill, squashed into a one-bedroom council flat with their two young children Miguel and Ivana.

Charity worker Julie and her two daughters swap homes and lives with millionaire consultant Jazz and fiancé Catia for a week. The result is a life-changing experience on both sides.

Anna who lives on the breadline moves into a Leeds mansion.

The owners of a beauty clinic swap homes with a single mum.

A family swap their house in Bradford, for a pad in Kent.

Exploring if money buys happiness. Trevor and Marie swap their four-bedroom, three-bathroom detached house, with Michael and Natasha who get by on £100 a week.

The Lee family swap their lives with the Wood family.

Businessman Adam and his father Ian, who live in a four-bedroom mansion in Essex, swap with single mum Kiptieu, who lives in a small council flat in Abbey Wood, London. With a number of successful businesses under his belt, Adam now travels round the world, interviewing the great and the good from showbusiness, sport and business.

A family, who enjoy a weekly disposable income of around £1200, are swapping lives for a week with Mike, Natalie, and their two young daughters. They hail from Coleshill on the outskirts of Birmingham, where they survive on just over £75 a week.

A former city banker's family struggle on under £150 a week, while Jade and Dean and their five kids don't know how to spend their weekly allowance of £1300.

Multi-millionaire property investor Ayo and his best friend Patrick swap their luxury lifestyle with Jodie and her family who get by on £53 a week.

A family leaves their four-bedroom terrace house on a council estate to live in a six-bedroom house set in 60 acres.

One family is from the richest 10 per cent in the UK, while the other is from the poorest 10 per cent. These families from opposite ends of the wealth and class divide are given the chance to spend seven days in their counterparts' shoes.

A wealthy family try and help a pole-dancing mum's dream come true. Andrea and Matt from Cardiff who live in a large Victorian property with son, swap lives with family who have just £71 a week.

Millionaire Lamborghini-driving Maxie swaps homes and lives with Danny and Nicky, who wash dishes in a local café. Featuring eight children, boxing, supercars, and botox, both families are tested to figure out whether money does buy happiness.

Struggling Mum Laura and partner Rob swap homes and lives for a week with millionaire builder William. Sarah and Rob discover a life of untold luxury. For William, it is also a chance to escape the hustle and bustle of running his busy empire.