Paul Morris from Harrogate believes he's cracked the genetic code of an acorn to make genetically engineered pig feed. Is it a ground-breaking discovery or will the Dragons think it's all hogwash? Mike and Sarah Longthorn, and Laura Booth from Hull think they have the perfect welly for festival fashionistas braving the mud. Inventor Ehsan Yazdani from London shows off his portable mini gym for fitness fanatics on the go, but can he convince the Dragons that his business is in good shape? And if that wasn't enough, Reverend John Berriman from Cornwall has invented a new flavour of fizzy drink with a very unusual ingredient. It's time for a Dragon taste test - will the Reverend pass or fail?

The episode was rated 6.91 from 11 votes.

A Manchester-based entrepreneur thinks he has invented the cut-price alternative to a romantic weekend away - a rental kit that transforms an ordinary bed into a four-poster. The bottled water industry is worth millions and Guy Jeremiah from London wants to tempt the Dragons with his green alternative - a collapsible, reusable bottle. The multimillionaires are usually all for inventions that save money, but is this a step too far? Sam Petter brightens up the Den with her mission to get kids more active; and Lancaster duo Peter Harrison and Wesley Downham are hoping that their security company is a safe bet for the Dragons. Between them, they have plenty of experience in facing down tough characters, but will that help them hold their own with the Dragons?

The episode was rated 7.08 from 12 votes.

t's a vintage Den this time as London-based Angela Newman invites the multimillionaires to invest in her business which celebrates the glamour of a bygone era. The Dragons like their fair share of glamour, but do they like it enough to invest? Another hopeful is John Jackson, a 72-year-old inventor from Essex who thinks the humble washing line needs a modern day revamp and is hoping the Dragons agree. And have engineers Robert Leeds and Guy Seymour come up with the perfect investment for the multimillionaire who has everything? It's an ideal fit for their luxury yachts, the biggest product ever seen in the Den and one of the largest investments ever requested. But will the entrepreneurial duo sink or swim?

The episode was rated 7.50 from 12 votes.

The Dragons are back and hungry to secure themselves the best deal. These are challenging times economically, but that hasn't deterred the nation's entrepreneurs from pitting their wits against the multimillionaire investors. In this series, a record number of entrepreneurs walk up the famous stairs to ask for an all-important cash injection that could transform their businesses and change their lives. The rival multimillionaires may be used to the odd glass of something sparkling, but Devon-based vineyard owner Geoff Bowen hopes his unusual business proposition will tempt them into investing. Inventor Derek Cozens thinks that road signs are so last century and wants to drag them into 2010 with his new product range. Do Dragons have a sweet tooth? One 24-year-old mum from Preston, Kirsty Henshaw, hopes they do and that it's the best way to get the cash she needs for her frozen pudding business. It wouldn't be Dragons' Den without a product getting tested to destruction, and calling a product 'safe' is like a red rag to a bull for one particular Dragon.

The episode was rated 7.71 from 14 votes.