乔·辛普森与西蒙·耶茨是一对登山好搭档,他们一起挑战了无数高峰,这一次是秘鲁安第斯山峰。在成功登顶后,下撤的途中,乔发生意外,跌下陡坡,摔断了右腿。西蒙用绳索紧紧拉住他,在暴风雪中下撤。然而在途中,乔再次不幸落入冰洞,两人难以沟通,紧靠一根绳索把彼此连在一起。他们随时都有坠崖身亡的可能,僵硬的两个人也没有足够的食物和水源渡过难关。西蒙手里的刀在绳索上迟迟不决,而他的眼泪已经难以抑制的流了下来。在绳索的另一端,乔又有怎样的期盼,他能绝境逢生么?In the mid-80's two young climbers attempted to reach the summit of Siula Grande in Peru; a feat that had previously been attempted but never achieved. With an extra man looking after base camp, Simon and Joe set off to scale the mount in one long push over several days. The peak is reached within three days, however on the descent Joe falls and breaks his leg. Despite what it means, the two continue with Simon letting Joe out on a rope for 300 meters, then descending to join him and so on. However when Joe goes out over an overhang with no way of climbing back up, Simon makes the decision to cut the rope. Joe falls into a crevasse and Simon, assuming him dead, continues back down. Joe however survives the fall and was lucky to hit a ledge in the crevasse. This is the story of how he got back down.