Robert Mitchum stars as a war-weary infantry colonel on the front lines in the opening days of the Korean War--facing an overwhelming enemy at One Minute to Zero. While overseeing the evacuation of the United Nation forces to Japan, United States Infantry Colonel Steve Janowski (Mitchum) finds himself falling in love with Linda Day (Ann Blyth), a beautiful member of the United Nations commission in Korea. Now, as he leads an invasion force to retake the peninsula, Janowski must choose between the fight he must wage and the woman with whom he longs to stay.