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.
Guy Stockwell
Doug McClure
Leslie Nielsen
Telly Savalas
David Mauro
Robert Wolders
Leo Gordon
Michael Constantine
Malachi Throne
Joe De Santis
X Brands
Michael Carr
George Keymas
Patrick Whyte
Duane Grey
Victor Lundin