Two graduates aim to impress the Dragons with their update to a 200-year-old invention, a product they believe creates a whole new way of advertising on Britain's streets. Will the pair's futuristic demonstration be enough to secure the cash they desperately need, or will the investors spot a fatal flaw?

A beauty lover from Birmingham pitches possibly the smallest product ever seen in the Den, and a Lancastrian father of three has some explaining to do when his business building wooden huts comes under close scrutiny from the five multimillionaires.

Other ideas seeking investment in Den include a multi-directional paint brush, a solution to the troublesome problem of 'pillow slippage' and a taxi driver's security invention, which is put through the Theo Paphitis break test.

This week in particular the Dragons seem to have got out of their million pound beds on the wrong side. Tempers flare when one entrepreneur offers just one per cent of his business, valuing it at 15 million pounds; hackles are raised by a toastmaster from Staffordshire looking for investment in his 'male intimate wipes'; and the Dragons live up to their name when deciding whether to invest in an online store for second-hand goods. But can any turn it round and secure the investment they need?

Also facing the Dragons are a TV stuntman pitching his horror-themed paintball experience, a husband and wife with a new DIY product and a man from Birmingham who believes his darts invention is a world first.