The four members of the China Everest Climbing Commando confront the most difficult mount. The first four failures have cost them too much physical strength until the wind and snow stop the gap.

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.