Katherine meets the couple who went from running a market stall to founding retail chain Poundland. She also talks to a playboy who started out in pop music and a Beverley Hills plastic surgeon.

Katherine Ryan meets Britain's richest plumber, the Monaco-based twins who host some of the world's most exclusive yacht parties and a 10-year-old girl who made her first million by the time she was 6.

Katherine meets a man who made his fortune from a string of gay bars, a former mafia boss turned motivational speaker and the world's richest and most glamorous 'homeless' family.

Katherine meets two men who made their fortunes by selling sex toys, a woman who creates luxury creams from bee venom and a man who designs the most exclusive cars in the world.

Katherine meets a 27-year-old millionaire poker player and goes house hunting with former Big Brother contestant Aisleyne Horgan-Wallace who is now a property tycoon.

Katherine Ryan meets a man who got rich from caravan parks, a motivational speaker who made money helping others and a man who can gold plate anything to order.