Agadez is a lonely French outpost baking under the desert sun and commanded by the cruel and oppressive Captain Savatt (C. Henry Gordon). To it comes, at his own request, Legionnaire Jim Wilson (Paul Kelly soon followed by his fiancée, Carla Preston (Lorna Gray), who has been tracing him from post to post. Legionnaires seize the fort and turn Savitt loose in the Arab-haunted desert with only a fraction of the water and food needed to get back to civilization. But Savitt gets through and returns to the fort at the head of an avenging troop of men.