In the wake of a failed raid during the Korean War, Sgt. Paul Ryker (Lee Marvin) is charged with aiding the enemy. Ryker's defense rests on the notion that he was ordered to carry out a secret offensive against the North Koreans. But because the mission was so closely guarded, nobody can vouch for him. Capt. David Young (Bradford Dillman) is the Army's prosecutor, but his impartiality comes under scrutiny when it's revealed that he has been wooing Ryker's wife, Ann (Vera Miles).