How'd You Get So Rich?

Katherine meets the husband and wife team that went from running a market stall to becoming the founders of the £50 million retail chain Poundland.

Katherine Ryan meets the richest plumber in Britain, the Monaco-based twins who host the most exclusive yacht parties in the world, and the 10-year-old girl who made her first million by the age of six.

Katherine Ryan meets a mobster turned preacher, a gay-bar tycoon, and an American couple who made a fortune inventing an app and now travel the world for free.

Katherine Ryan meets two men who made millions from sex toys, a woman who creates luxury creams from bee venom, and a man who designs some of the most exclusive cars on the planet.

Katherine Ryan meets a millionaire poker player and goes on a home hunt with ex-Big Brother contestant Aisleyne Horgan-Wallace, who's remade herself as a property mogul.

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