Just prior to the North Korean invasion of South Korea, World War II U.S. Army veterans Colonel Steve Janowski (Robert Mitchum) and Sergeant Baker (Charles McGraw) are teaching South Korean soldiers how to use a bazooka to stop an enemy tank. Linda Day (Ann Blyth) is a United Nations worker assisting refugees. Janowski warns Day and her colleagues to leave the area because hostilities are imminent. Day, however, insists that the North Koreans would not risk the wrath of world opinion. In response, Janowski asks her if world opinion stopped Hitler.