Dragons' Den is back with two brand new multimillionaires joining the illustrious line up - cloud computing pioneer Piers Linney and design industry icon Kelly Hoppen take their seats alongside returning den stalwarts Duncan Bannatyne, Peter Jones and Deborah Meaden. In this series opener a former male stripper breaks down under the pressure, and two British expats launch their Australian tanning range with a jingle that takes the Dragons by surprise.

This time a crooning Texan cowboy struts into the den with some backing from his country band, while a husband and wife team hope their Brazilian dance troupe will help grab the Dragons' attention.

This time a youthful publisher challenges protocol with a brave business strategy that bucks magazine industry trends, while a trio of former ad-men provide the Dragons with a tough quizzing of their own. It's all or nothing in the den, who will leave empty handed?

Vying for the dragons' attention include a pair of Cumbrian woodsmen who attempt an unusually combative tactic in winning the dragons' approval, while the den falls into unusual serenity when a Glasgow couple demo their yoga franchise. Will any business succeed in securing the dragons' investment?

One Dragon gets behind a saxophone when she joins in on a musical pitch and a feisty Hull-based entrepreneur faces the Dragons armed with her all-pink car-care range. But will any walk away with the cash they so badly need?

To celebrate the series finale, a drinks bar is brought into the den. However it will not be alcohol that the dragons will be sampling, as a Norfolk couple serve up their fruity alternative. The dragons switch their suits for something less formal when two recent graduates bring campus styling into the den. Will any of tonight's final batch of entrepreneurs walk away with investment?

Two graduates from Manchester offer a stake in their youth-orientated package holiday business, a Bulgarian inventor of a self-filling bath pitches for a colossal one million pounds and a 20-year-old entrepreneur from Essex wows the Dragons with an ingenious cure for water damaged mobile phones.

A former Team GB triathlete pitches an innovative sports recovery drink, a tech savvy entrepreneur presents his taxi-booking app and one London based businessman raises some eyebrows with his bespoke male contraceptive solution.

The mood in the den takes on an unusually serene feel, as a Yorkshire couple go all out to present their glamorous camping business. A mother of four from Shropshire has a new take on the coffee bag and the Dragons are in for a surprise when an entrepreneur attempts to graffiti the den.

The den takes on an international flavour as a Ghanaian entrepreneur brings in his chocolate drink startup, a Welsh couple hope to change our sleeping habits with their British-made woollen duvets, and the Den is filled with strange monsters when a pitch for a kids' storage device brings out the Dragons' inner children.

The Dragons are left in the dark when a former marine presents his glow-in-the-dark sportswear brand. A Glasgow based businessman pitches his uniquely shaped energy saving device, and a London mum invites the multimillionaires to invest in her confidence-building children's toy. Will any get the investment they are hoping for?

A London-based entrepreneur pitches a new take on the post-it note, two business women attempt to whip up some animal magic when they bring a pair of alpacas, and the dragons come face-to-face with a tough-talking entrepreneur who has a product they all believe is worth fighting for.