The film is about a desert-bound member of the French Foreign Legion who exposes a betrayer to the Legion and is then sent on a mission among the Arabs to conclude the signing of a crucial peace treaty.
Gary Cooper
as Maj. Henri de Beaujolais
Evelyn Brent
as Mary Vanbrugh
Noah Beery
as Sheikh El Hammel
William Powell
as Becque
Roscoe Karns
as Buddy
Mitchell Lewis
as Suleman the Strong
Arnold Kent
as Raoul de Redon
Raoul Paoli
as Dufour
Joan Standing
as Maudie
Frank Reicher
as Gen. de Beaujolais
Oscar Smith
as Djikki
Alberto Morin
as Bit Part (uncredited)