In a bid to be crowned Britain's best young traders, teams from across the country battle it out in a series of tough trading challenges set by Saira Khan.

Saira Khan takes two teams to London. Their challenge is to sell Cool Britannia-themed cupcakes on Carnaby Street. The stakes are high because the winner is guaranteed a place in the USA grand final. They'll have to decide what to buy, negotiate the lowest prices and then sell, sell, sell. But which team will trade their way to the USA? Show less