A terrible storm sweeps across a vast desert of North Africa. Five legionnaires and a captain on a training course are caught in it and take refuge in a ruined temple. Into the temple, too, come four Arabs laden with hate for the Legion captain. Then a beautiful aviator arrives - the estranged wife of the officer. When darkness falls, and the storm rages outside, the Arabs take a slow and terrible vengeance against the captain. Death strikes suddenly, often, and in a grotesque form.