A group of boys decide to form a guerrilla unit in order to sabotage and spy on the American enemy after one of the communist-controlled cities falls to them.

The main character of the film, Man-sik Kim, is a fighter of the Korean People's Army. Through his bravery and resourcefulness in battle, he crushed the enemy's air superiority and dealt a crushing blow to the enemy.

The film tells the story of a small group of the Korean People's Army, led by Hakcheol Lee, deputy chief of the reconnaissance division, which went behind enemy lines.

The story of a Korean who, since childhood, lived under the rule of Japanese invaders. During the Korean War, the hero devotes all his strength to the fight against the aggressors, worthily serving the homeland he loves.

The film tells about the life and struggle of the Korean peasants living on the Phundekber plain, near the 38th parallel, against the Americans and the Lisinman people. The film is set in 1950.