For the first time in Den history the Dragons have company – guest Gary Neville. He joins the fearsome five – Peter Jones, Deborah Meaden, Touker Suleyman, Sara Davies and Steven Bartlett – to fight it out for the best investments in the Den. A former professional footballer pitches his match worn memorabilia business, while an ear acupuncture devotee wants to bring the ancient Chinese practice into the future. A Welsh husband and wife team think they've found the best way to view your favourite movie, and a spiritual entrepreneur is convinced his all-natural drink will become more popular than coffee.

The entrepreneurs bidding for the Dragons' investment include a cat-loving inventor who thinks he's found a pain-free way to keep feline teeth clean.