Some mountains are too difficult, too dangerous or too damn crazy to climb! That's why they do it.

The classic film that inspired the National Geographic Series. Join a global quest with world-class climbers in pursuit of the ultimate goal: the first ascent. Featuring Dean Potter, Timmy O'Neill, Sonnie Trotter, and the amazing Didier Berthod on his quest for the first ascent of the Cobra Crack.