The Dragons and some of our most memorable entrepreneurs weigh in on what went right and what went wrong in the den.

The Dragons get generous during the holidays with almost 3 million dollars in deals in just one episode!

The Den goes green with a frenzy of eco-preneurs: golf tees with a twist, cutlery that slices through Kevin's critique, and more.

An encore pitch from last season's epic inventor, a chilly invention turns up the heat, and an eco-invention melts The Dragons' frosty exterior.

One Dragon dishes out the dough for a good night's sleep; a pair of competitive ballroom dancers can't find their rhythm in the Den.

An inventor with a history of bad luck changes his fortunes; a sleep-aid sets off the Dragons' alarms; and giving the boot to a sexy business proposal.

A former pro wrestler pitches an innovative barbell system; a florist wants to grow his blossoming flower business.

An eager entrepreneur tries to woo the dragons into the wine business; a pair of BFFs share their big plans for the plus-size industry.

An army of working women storm the Den for a powerful pitch, The Dragons junk an idea for cleaning shopping carts.

A husband and wife duo has the Dragons breathing fire with their spicy BBQ sauce; two mom-preneurs hope to make life easier with their time-saving inventions.

The Dragons are torn between a superior pitcher and his inferior idea, and an acrobatic pitch by an aerial artist has Kevin showing his devilish side.

The season premiere of Dragons' Den features a new dragon, wealthy philanthropist and maverick investment banker, W. Brett Wilson.