Profitability and bottom line are back on the agenda as more business proposals are pitched to five of the most successful commercial brains in Britain. Each of the entrepreneurs entering the Den are hoping to convince the multimillionaires that their business is worthy of financial backing, but as well as a good product it takes steel and determination to secure the Dragons' cash. There are mixed fortunes in the Den this time as fashion-conscious twins try to persuade the Dragons to buy into their clothing range, a Teesside-based entrepreneur has a run-in with the investors over his decision to separate out the assets in his company, and a former firefighter asks the Dragons to invest in a car that thinks it's a bike. One multimillionaire also gets their feet wet while trying out a beauty treatment administered by fish, but will a bit of Dragon pampering lead to a clean sweep of offers?

• Evan Davis
• Tej Lalvani
• Sara Davies