The Flash investigates the mysterious cave-ins occuring in the new intercity tunnel.; Karvac, a student of ancient mysteries, uses ages old rites to resurrect Scorpio, the alligator god of the Phoenicians. He calls on and brings the god back into existence in the form of a large alligator which gives Karvac the knowledge of making a flame gun (though he professes not knowing the actual secret). Karvac outfits his army with flame gun rifles (while he carries it in pistol form), both of which are strong enough to dissolve a man into goo. After these guns help to wipe out a whole regiment, Karvac's stopped by Hawkman and friendly bombers wipe out his gruesome army.