Peter Jones, star of Dragons' Den, is on the road to meet some of the UK's top entrepreneurs. As well as looking at the nuts and bolts of the various enterprises, Peter studies the personalities of the people he meets to examine whether there is something inbuilt in their DNA that makes them successful.

This time Peter meets Lord Karan Bilimoria, boss of the Cobra beer company, and Charlie Mullins, who runs London-based Pimlico Plumbers. They talk honestly about the bad times as well as the good times in building their fortunes.

Charlie reveals how his plumbing company sprung a leak and nearly went under. But by 2012 he was worth an estimated £55 million. Karan Bilimoria nearly went out of business too, but he bounced back. Show less