Oasis of the Zombies (1982)

During World War II, a small German squadron was assigned the task of carrying a shipment of Nazi gold across the African desert. Along the way, the squadron was ambushed by the Allies, and only one American soldier, Robert, survived. Years later, Robert tells his story to a German treasure hunter named Kurt, who promptly murders him. Robert's son, upon learning of his father's death, vows to travel to Africa and find the lost gold himself. While the desert is hazardous enough by itself, the dangers lurking around this oasis are more than any of the treasure hunters ever imagined.