An examinination of the key ingredients required for a successful pitch, plus a selection of the tough lessons dished out by the Dragons - advice that will hopefully help budding entrepreneurs. The programme also delves behind the scenes during the filming of series nine, finding out how new Dragon Hilary Devey settled in.

The Dragons reveal the secrets of pitching and presentation in six lessons. They also catch up with some of the entrepreneurs who have had the most memorable pitches in the Den to find out how their businesses are getting on.

Bob Davies took personal presentation to a whole new level when he entered the Den in 2011. Suited and booted, the bow tie wearing ex-radio presenter was not afraid to hype up his gaming product, but impressed Hilary Devey enough to get an offer of investment. But now the hard work begins as Hilary starts scrutinising his business accounts to start planning for the future, and it becomes clear that she is not afraid of pointing out where he has gone wrong.

In 2007 David Beckham lookalike Andy Harmer failed to get investment when he famously froze during his pitch. Four years later he calls in on Peter Jones with a new idea and a very recognisable entourage in tow. But will he be able to make it through this presentation without his nerves getting the better of him?

As far as Duncan Bannatyne is concerned, one of the most important factors of pitching is honesty. In 2010 he invested in straight-talking Layla Bennett who runs a falconry business in Mid Wales. Now the Dragon comes face to face with a falcon as he arrives to survey his new business partners.

Plus, we reveal the Dragons' favourite pitches. Show less