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 this case to court martial, Edwards becomes convinced of Cargill's innocence.

Richard Widmark
as Col. William Edwards

Richard Basehart
as Maj. Harry Cargill

Dolores Michaels
as Cpl. Jean Evans

June Lockhart
as Mrs. Cargill

Carl Benton Reid
as Lt. Gen. J. Connors

Martin Balsam
as Sgt. Baker

Rip Torn
as Lt. George Miller

Khigh Dhiegh
as Col. Kim

Yale Wexler
as Capt. Joe Connors

Alan Dexter
as Mike