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.

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.

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.

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.

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.

Carer Lesley is struggling financially and could be about to lose her home due to increased rent. She swaps lives with Nicky, a wealthy design entrepreneur who has overcome her own challenges.

Kim and Dave live just outside Newcastle-on-Tyne. After 20 years, Kim, a teacher, and Dave, a landscape gardener, have risked everything to chase 'the Good Life'.

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.

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.

A landowner swaps his estate for a former council house.

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.

Millionaire ‘Content King’ Leonard lives a luxury 2-bed apartment overlooking the Thames on London’s Southbank. He swaps homes with Single mum Dominique, from South London.

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.