During the Korean War, there was a remote mountain village called Dongmok Village near Gangwon Province. The people there were isolated from the outside world and lived a self-sufficient life. They didn't know that there was a war outside. Pyo Hyun-chul (Shin Ha-kyun) of the South Korean Army and the medical worker Moon Sang-sang (Seo Jae-kyung) came to Dongmok Village because they escaped from the camp and fell behind. At the same time, Lee Soo-hwa (Jung Jae-young) of the Korean People's Army and veteran Jang Young-hee (Lim Ha-ryong) and young soldier Seo Taek-ki also came to Dongmok Village. Before that, because of the plane crash, American pilot Captain Smith (Stephen Teschler) also came to the village. When the soldiers of both sides met, they were on the verge of a fight. Later, the tense confrontation gradually calmed down and they did not invade each other, but there was still a lot of hostility. In contact with the simple villagers, the soldiers got used to the peaceful life in Dongmok Village. Later, even if the war came to the village, the soldiers of both sides decided to shoulder the task of defending Dongmok Village.