Glaucus (Steve Reeves) is the muscular hero in the spectacular apocalyptic days before fire, ash and molten lava covers the city of Pompeii. Glaucus wrestles an alligator, a lion, and dozens of warriors. He also walks through walls of fire while trying to wipe out a band of blood thirsty killers masquerading as Christians. All events lead up to the violent eruption of Mount Vesuvius.