1960年，中国登山队向珠峰发起冲刺，完成了世界首次北坡登顶这一不可能的任务。15 年后，方五洲和曲松林在气象学家徐缨的帮助下，带领李国梁、杨光等年轻队员再次挑战世界之巅。迎接他们的将是更加 严酷的现实，也是生与死的挑战......May 1960. Mount Everest, the second step under the cliff. The four members of the China Everest Climbing Commando are attacking the most difficult and most difficult "second step". This is their fifth assault. The first four failures have cost them too much physical strength - ...finally, the wind and snow stop the gap.