The movie is set against the backdrop of the battle of Changjin Lake in the second campaign of the war against the United States and North Korea, and tells a dramatic history: 71 years ago, the Chinese People's Volunteers went to North Korea to fight in the extremely cold and harsh environment, the Eastern Front combat troops with a steel will and courageous fighting spirit all the way to chase and kill the enemy, reversing the battlefield situation, the military and national prestige.
In the fierce battlefield in the midst of the harsh weather conditions, Wu Qian Li and Wu Wan Li, two brothers soldier including the brave Chinese soldiers must fight together and find a way to cope with the invasion of US forces.