Brigitte Helm

Amid the shifting sands of the Sahara Desert, two French Foreign Legionnaires discover a subterranean passage to a lost world ruled by an evil queen.

In a futuristic city sharply divided by class, a high society gent falls in love with a working-class prophet who predicts the coming of a savior.

The business tycoon Nicolas Saccard is nearly ruined by his rival Gunderman, when he tries to raise capital for his company. To push up the price of his stock, Saccard plans a publicity stunt involving the aviator Jacques Hamelin flying across the Atlantic to Guyana and drilling for oil there, much to the dismay of Hamelin's wife Line.