A U.S. Navy submarine captain tries to prevent the Soviets from trying to launch World War III.
Stuart Whitman
Captain Welch
Persis Khambatta
Sylvia Kruger
Angus Scrimm
Soviet Destroyer Captain
Leon Askin
Martin Beck
C.I.A. Man - Berlin
Emile Beaucard
Soviet Sub Exec
Paul Mantee
Paul Comi
