French General Birabeau has been sent to Morocco to root out and destroy the Riffs, a band of Arab rebels, who threaten the safety of the French outpost in the Moroccan desert. Their dashing, daredevil leader is the mysterious "Red Shadow". Margot Bonvalet, a lovely, sassy French girl, is soon to be married at the fort to Birabeau's right-hand man, Captain Fontaine. Birabeau's son Pierre, in reality the Red Shadow, loves Margot, but pretends to be a milksop to preserve his secret identity. Margot tells Pierre that she secretly yearns to be swept into the arms of some bold, dashing sheik, perhaps even the Red Shadow himself. Pierre, as the Red Shadow, kidnaps Margot and declares his love for her.
John Boles
as The Red Shadow
Carlotta King
as Margot
Louise Fazenda
as Susan
Johnny Arthur
as Benny Kidd
Edward Martindel
as General Bierbeau
Jack Pratt
as Pasha
Roberto E. Guzmán
as Sid El Kar
Otto Hoffman
as Hasse
Marie Wells
as Clementina
John Miljan
as Captain Fontaine
Del Elliott
as Rebel
Myrna Loy
as Azuri
