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.

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.