The multi-millionaire Dragon investors are at the top of their game. Despite the economic doom and gloom that surrounds the country at the moment, the Den once again proves to be an oasis of investment. But only for those entrepreneurs with the very best business ideas and inventions, and who are prepared to risk all, by pitching to the notoriously tough-talking Dragons.

Over the course of the series, the Dragons are prepared to invest their own money, changing the lives of some of Britain's best entrepreneurs. The pressure is more intense than ever so expect them to do everything they can to avoid hearing the Dragons utter the dreaded phrase, 'I'm out'.

Hazel Ives swings into the den hoping the dragons will do some monkey business and invest in her high wire adventure park; Michael Cotton tries not to misfire with his device to prevent unlucky motorists filling up their diesel cars with petrol; and what will the dragons think of some gut-wrenching toys based on roadkill animals?

The multi-millionaire investors also interrogate 26-year-old Peter Hopton about the green credentials of his eco-friendly computers; former pharmaceutical executive Ed Wray who's given up his day job to chase his entrepreneurial dream, shows off his new spin on outdoor cooking - the Barbeskew; and attempting to light up the Den is PHD Scientist Ming Yun from Oxford with his illuminating range of party products. Show less