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The Dragons' competitive natures are put to the test when the Den is turned into a game show set, as a former chat show host seeks investment for her television quiz idea. Although she has experience in this area, will the Dragons think the price is right?

A 22-year-old student from Bolton surprises the Dragons with his unbridled enthusiasm for the UK's car parking industry, and a father and son from Yorkshire cause consternation among the multimillionaire investors with their firm, no-nonsense negotiating style.

Also pitching for investment in the Den are a samba band, flowering tea and a man washing his hair with the help of a fully working shower.