A pair of porridge entrepreneurs invite the Dragons to a teddy bears’ picnic and academic traditions are turned on their head by two graduates who are determined to disrupt an established marketplace.

The Dragons assess the profit-making potential of an eco-friendly entrepreneur's alternative to straws, a range of skincare products, a device designed to make bikes more visible, and a brand of food with a personal story behind it. Evan Davis presents.

Former Dragon Theo Paphitis returns to the panel to stand in for Touker Suleyman, joining Sara Davies, Peter Jones, Deborah Meaden and Tej Lalvani in assessing more business ideas. This week's entrepreneurs pitch their ideas for a diet app, a clothes-mending workshop, a gadget for repairing bicycle chains, and a range of dog treats.

The panel oversee more business propositions, with returning Dragon Theo Paphitis joining regulars Peter Jones, Deborah Meaden, Tej Lalvani and Sara Davies. Two entrepreneurs seeking funding for a range of drinks go to the lengths of setting up a bar in the studio, while other items up for assessment include a design for a pipe-fitting tool and a range of men's cosmetics.

More plucky entrepreneurs prepare to enter the Den, but it won’t be easy to impress feisty multimillionaires Peter Jones, Deborah Meaden, Tej Lalvani, Sara Davies and former Dragon Theo Paphitis, who is standing in for Touker Suleyman. Those ready to brave the heat of the Den include a Scottish sauerkraut enthusiast who wants to balance the Dragons’ gut bacteria as well as boosting the health of her business. The investors also listen out for the opportunities offered by a new breed of phone alarm app, and one entrepreneur thinks he has the solution to post-festival waste.

Only the bravest business people dare to set foot in the Den, where multimillionaire investors Peter Jones, Deborah Meaden, Tej Lalvani and Sara Davies breathe fire. Joining them is Theo Paphitis, who is standing in for Touker Suleyman for the last time this series. A Yorkshire shepherd and his business partner hope the Dragons will flock to invest in their field-to-fork lamb delivery boxes. An inclusive fashion designer brings a little street style to the Den, and a confectionery pioneer hopes to bag a sweet Dragon deal with his low sugar, dairy-free chocolate. But will their pitches make the Dragons bite or fight?

Crafting queen Sara Davies, joins Peter Jones, Deborah Meaden, Touker Suleyman and Tej Lalvani. In this episode, a spiced rum entrepreneur gets the party started with a rock 'n' roll makeover.

Dragons' Den is back with a positively festive feel. But seasonal goodwill is no guarantee of success for a new batch of entrepreneurs facing fiery multimillionaires Sara Davies, Touker Suleyman, Deborah Meaden, Tej Lalvani and Peter Jones.

An eco-friendly gift wrap business gets a helping hand from Santa, while a sock entrepreneur embodies the holiday spirit with his buy-one give-one business model. And a pair of candle entrepreneurs try to convince the Dragons that their products can spark some serious profit. But while all the ho-ho-hopefuls dream of Dragon cash for Christmas, these investors don't give the gift of investment unless a business has real sparkle.

Tonight’s hopefuls include a beauty entrepreneur whose tools have a social as well as practical purpose and two low-alcohol brewers who hope the Dragons will stump up for the ultimate round of investment. And the multimillionaires try more than a business on for size when a footwear entrepreneur pitches his range of hand-finished shoes. Will he leave the Den walking on air?

Tonight, a colourful hair entrepreneur offers one Dragon a new look - and all of them a new investment opportunity. A cheesecake maker has sweet dreams of a cash boost for his franchise model, but will his pitch be the stuff of nightmares? And a husband-and-wife team hope their electrical invention will make sparks fly in the Den as rival Dragons Deborah Meaden and Sara Davies line up to try it out.

Tonight, an inventor tries to recruit the Dragons for his war on household draughts, and a micro-businessman introduces the investors to the idea that dogs eating bugs could be a good (and profitable) thing. There is a shimmying session with a fitness teacher, and the creator of a high-end garment bag demonstrates an unshakeable belief in the value of his business.

Syrian refugees Razan and Raghid Sandouk bring their British-made alternative to Cypriot halloumi to the Den, but will the Dragons think it is a tasty proposition? Breezing into the Den are partners in business and life Richard and Samantha, with their cutting-edge virus filtration gadgets. And Joe Metcalfe is hoping for a hand out from the Dragons with his charity-meets-commerce clothing business. Can he convince the Dragons that pre-loved can be profitable?

A German-Portuguese business combo have their business, which makes camera lenses for mobile phones, brought into sharp focus, but will they be in the frame for investment?

Entrepreneurs face the fiercest line-up in business. Syrian refugees Razan and Raghid Sandouk bring their British-made alternative to Cypriot halloumi to the Den.

A husband-and-wife team put the needs of NHS workers at the heart of their skin-care business, but will their altruistic approach go down well?

Products pitched to the Dragons this time include organic superfood powders, a low-calorie craft lager, a plaque-detecting dental app and a range of afro and curly hair products.

Featuring the inventor of a nifty construction bracket, a tech entrepreneur with a fitness app aimed solely at women, and a Scottish dog lover with a range of natural doggie treats.

A 29-year-old tech enthusiast is confident that his clever way of monetising people's personal online data will spark interest with the Dragons.

A pitch for a music-sharing app is brought down to earth, the Dragons interrogate an idea for an ethical clothing verification platform, and there's an emotion tale behind a range of active shapewear.

A plucky entrepreneur pitches an idea for genetically personalised meal shakes, and the Dragons are put to the test by the founders of a virtual escape-room business.

Pitches include a premium whisky subscription business, an easy-assemble lighting system and a clever sand-removing powder.

Entrepreneurs pitch plantable children's books, an at-home private chef service, luxury home fragrances and scent-detection courses for dogs.

A London-based entrepreneur pitches an assortment of naturally derived sugar alternatives, hoping the response to his proposition will be just as sweet.

There’s an explosive start to a pitch when a father and daughter duo demonstrate their airbag safety equipment, and a couple pitch their anti-roll changing mat for babies.

Pitches include a selection of premium spiced rums, a nursing bra designed to help mothers and babies breastfeed effectively, and a heatless hair-curling device.

Hoping to strike a deal tonight are the musical inventor of a drumming training device and an LA-born entrepreneur with a culinary alcohol product range.

A a pair of optometrists hope the Dragons will see a bright future in their blue-light filtering products, and an eco-entrepreneur pitches a carbon-offset trading app.

In the series finale, products pitched to the Dragons include online hypno-birthing platforms, a unique building system, a plant-based chewing gum and bespoke ring-making kits.

A Scottish entrepreneur presents a pint-sized gadget that he hopes will be big business, and a robotic invention sends the Dragons into a virtual world.

An animal lover from Canada pitches a green solution to canine pollution, and an ethically minded couple have some planet-saving ideas to transform the DIY market.

Entrepreneurs pitch activity-packed weekend breaks for adults, vegan handbags with an X-rated twist, a home delivery app for shoppers and a range of homemade soups and stews.

A dog-loving husband and wife duo try to collar some cash, and a mum-of-two aims to go global with her subscription kids clothing offering.

The Dragons question the expansion plans of an escape room business run by two brothers, and a former international tax lawyer offers a

bite-sized portion of her at-home teeth whitening business.

A tech expert pitches a digital solution to help the bereaved manage the affairs of the deceased, and best friends from London face a roasting over their mood-enhancing coffee products.

Two business partners offer up their planet-saving product as the solution to the plastic bag problem, and an American entrepreneur crosses the pond with her family's favourite drink.

A brewer’s high-strength hooch pole-axes a Dragon, a cruelty-free watch strap uses some surprising materials, and the makers of an eco-friendly deodorant make the Dragons jump out of their skin.

An entrepreneur unveils a device intended to prevent medical emergencies that was born out of a brush with death.

The creator of a mystery puzzle game tries to get past go, and two chocolate-mad entrepreneurs have some sweet delights in store for the Dragons.

A loved-up couple pitch their sustainable coffee from Honduras, and a fashionista presents the Dragons with her digital wardrobe app.

An Edinburgh-based duo present a luxury product for breast cancer survivors, and two familiar faces return to the Den with a sauce-squeezing solution.

Two sisters hope the Dragons will be coo-ing over their maternity wear business, and a builder who thinks he has come up with a game changer for the building trade tries to cement a deal.

Entrepreneurs pitch a moveable webcam, a men's skincare range, a caffeine chew for long-distance runners, and seasonal decorations that add diversity to the festivities.

Facing the Dragons tonight are a young cancer survivor with a stylish pillbox alternative, and two school friends who believe they’ve spotted a gap in the skincare market.

The Dragons listen to pitches from a couple who organise social events for four-legged friends and a 29-year-old with a larger-than-life clothing business.

A refillable fragrance company gets the Dragons’ creative juices flowing, and a green-fingered entrepreneur hopes to sow the seeds of success with his accessible gardening enterprise.

The Dragons decide whether to invest in a sparkly party-wear business or pop-up board games. A cleaning product entrepreneur aims to make a positive social impact by turning homes into mini factories.

Entrepreneurs pitch a selection of handbags made from fish skin, personalised bank cards, an app that shows you local shops, and an alarm system that tackles van crime.

The Dragons are pitched a second-hand clothing swap shop concept, a concertina dog gate and a state-of-the-art mobility device which gives wheelchair users independence.

Entrepreneurs pitch portable toilets for kids, crunchy mushroom snacks and a range of sustainable clothing.

Entrepreneurs pitch a multipurpose gardening tool, an adaptive clothing range, and app that reunites lost dogs with their owners, and a plant-based meal delivery service.

Entrepreneurs pitch a motorcycle clothing brand, a matcha-based energy drink and a DIY tool that promises to provide measurements like no other.

Entrepreneurs pitch plastic-free soap, an alternative to glue, a football board game and a micro camper van.

Entrepreneurs pitch a figure-skating clothing brand, a vacuum attachment to combat dust from drilling, a coffee company and a volunteering app.

A wizard-inspired pair believe magical drinks and mini golf can cast a spell over the Dragons, and there’s a sweet pitch from chocolate makers who’ve spotted a gap in the market.

A surgeon turned inventor thinks he’s solved a universal problem for parents, while low-strength gin gets taste buds tingling. A Norwich-based couple pitch their kids' storage baskets with a twist, and an entrepreneur is on a mission to eliminate the dreaded sweat patch.

Some entrepreneurial mums pitch a child-friendly sunscreen applicator, a hard-water shower filter hopes to clean up in the Den, and a collectable whisky company offers an interesting guarantee.

A sock business that employs people with learning difficulties, three second-hand luxury clothing entrepreneurs, and a pair of optical experts bid for the Dragons' investment.

The entrepreneurs seeking the Dragons' investment include a former special effects make-up artist with a natural skin care range and twins who think they’ve found a way to help renters get a mortgage.

For the first time in Den history the Dragons have company – guest Gary Neville joins the fearsome five.

Among those bidding for the Dragons' investment is a Guinness World Record breaker who wants to bring the art of henna to the masses.

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.

The Den has a new guest Dragon, the London-born CEO behind Good American and founding partner of SKIMS, Emma Grede.

A volunteer guide dog trainer pitches her edible gift cards for our four-legged friends, and an entrepreneur and inventor thinks she’s found a way to help maximise storage space in the home.

A young entrepreneur hopes to find the Dragons’ sweet tooth with his gourmet gummies, and a self-confessed eco-warrior is on a mission to turn old waste plastic into beautiful products.

Dragons’ Den continues as more entrepreneurs showcase their passion and come face to face with the fiery five and guest Gary Neville.

A family-run business pitch their goat's milk skincare range, and a unique trail-running experience are hoping to go global. There's also a duo whose business could quite literally take you to space.

A thermostat for rental properties, snackable granola, a natural range of play make-up for children and a dispenser for eye drops are the investment opportunities for the Dragons.

Guest Dragon Emma Grede returns to the Den to consider the entrepeneurs' bids for investment, which include a father-and-son duo's new solution for cleaning showers.

The ideas seeking the Dragons' investment are an at-home manicure business, a range of doggie drinks, an inclusive magazine for visually impaired children and a new take on the traditional bean bag.

A Viking re-enactor with his take on mead, a husband-and-wife duo with their outdoor art, a very personal supplement, at-home manicures and a musician turned inventor.