Annie Dilard wrote that you can't test courage cautiously; and skier Josh Duek's story illustrates this perfectly. In 2004, Josh broke his back when an aerial flip went tragically wrong, leaving him a paraplegic. For eight years, throughout his rehabilitation and as he learned to challenge the mountain on a sit-ski, he dreamed of one day being able to perform an inverted aerial again. On February 3, 2012, Josh's friends help him make that dream come true -- and he became the first person to perform a backflip on snow in a sit-ski.