In 1953, the Korean War is entering the final stage. The People's Volunteer Army of China has launched the last major battle in Kumsong. In order to arrive at the battleground on time and deliver enough force to the Kumsong front line, the soldiers have to defend themselves against the never ending bombing of enemy bombers and race with time to repair bridges, all under the circumstance of supply shortages and inferior equipment. The rarely told history slowly unfolds.

Korean War, winter 1950. In the frozen and snowy area of Changjin Lake, a bloody battle is about to begin between the elite troops of the United States and China.

In the follow-up to "The Battle At Lake Changjin", brothers Wu Qianli and Wu Wanli undertake a new task for the People's Volunteer Army, defending a bridge part of the American troops' escape route from the advancing Chinese.

In 2014, the remains of soldiers from the first 437 chinese volunteers who went to fight in Korea against the United States were returned to their homeland. Through the real-life narratives of veterans from different military branches and different periods, the film presents their youth and dreams in blood, and restores the most realistic battlefield, bringing a shock and resonance to the hearts of young people today. The best way to remember is not to forget.