To license this clip go to http://www.natgeomotion.com/bell/clip/447N01W_112.do Sir Ernest Shackleton and his crew took bitter defeat and turned it into heroic survival.Early this century, members of the imperial Trans-Antarctic Expedition watched as their ship, the Endurance was crushed by the frozen sea.They were left with no radio and no hope of rescue.For more than a year, they drifted on packed ice, surviving on seal, penguin, and eventually dog meat, while battling freezing temperatures and mind-numbing boredom.When Shackleton, along with all 28 members of the expedition, emerged at Stromness whaling station in May, 1916, almost two years after their departure, the world was shocked.