Based on a true story of several Korean youths who were lured into the Japanese Imperial Army. Upon joining the Army, they were sent to Manchuria and then to Mongolia, where they were captured by Mongolian-Soviet forces. They were offered the option of joining the Soviet Army or being returned to the Japanese, at whose hands they faced execution. They joined the Soviet Army and were sent west to defend Moscow against the German offensive of 1942. The Koreans were then captured by the Germans, imprisoned in a POW camp and later captured by the Americans during the D-Day invasion.