电影背景以1920年在中国吉林省凤梧洞联合独立军摧毁日军第19师团,取得巨大胜利的凤梧洞战斗,与青山里战争一同被誉为"独立运动史"为原型的故事。Over a 4 day period, a fierce battle takes place between Korean independence militias and imperialist Japanese forces in Manchuria, China. The militia includes a master swordsman and an expert marksman.