Military investigator Colonel Edwards is assigned a case involving Major Cargill, a Korean War POW who is accused of treason. Although Cargill admits his guilt and Edwards' superiors are impatiently pushing Edwards to move the case to court martial, Edwards becomes convinced of Cargill's innocence.
| Actor | Role |
|---|---|
 Richard WidmarkCol. William Edwards | Col. William Edwards |
 Richard BasehartMaj. Harry Cargill | Maj. Harry Cargill |
 Dolores MichaelsCpl. Jean Evans | Cpl. Jean Evans |
 June LockhartMrs. Cargill | Mrs. Cargill |
 Carl Benton ReidLt. Gen. J. Connors | Lt. Gen. J. Connors |
 Martin BalsamSgt. Baker | Sgt. Baker |
 Rip TornLt. George Miller | Lt. George Miller |
 Khigh DhieghCol. Kim (as Kaie Deei) | Col. Kim (as Kaie Deei) |
 Yale WexlerCapt. Joe Connors | Capt. Joe Connors |
 Alan DexterMike | Mike |
| MManning RossLt. Harvey | Lt. Harvey |
| JJoe Di RedaGus | Gus |
 James DouglasSteve | Steve |
| KKenneth AltonBoxer | Boxer |
| JJack WebsterLt. Harper | Lt. Harper |
| EEdward McNallyPoleska | Poleska |
 Jimmie HoranPrisoner of War (uncredited) | Prisoner of War (uncredited) |
 Karl MaldenPrisoner of War (uncredited) | Prisoner of War (uncredited) |