Brothers Beau, John and Digby Geste join the Foreign Legion, where they fall under the rule of tyrannical Sergeant Markoff. Beau and John are assigned to Fort Zinderneuf, where Markoff tries to break their spirit, aware of a dark family secret concerning a fabulous jewel one of them carries. As tensions rise, Arabs attack the fort and rivalries must be thrown aside in a desperate battle for life.
Ann-Margret
Marty Feldman
Michael York
Peter Ustinov
James Earl Jones
Trevor Howard
Henry Gibson
Terry-Thomas
Roy Kinnear
Spike Milligan
Avery Schreiber
Hugh Griffith
Irene Handl
Sinéad Cusack
Henry Polic II
Ted Cassidy
Burt Kwouk
Val Pringle
Gwen Nelson
Roland MacLeod
Martin Snaric
Stephen Lewis
Ed McMahon
Gary Cooper