Superman goes back in time to ancient Mount Olympus, where he witnesses the Delphic Oracle prophesying the advent of the Man of Steel. Jealous that they will be forgotten in favor of Superman in the future, the deities of Olympus create a being with the powers of Zeus, Hercules, Apollo, Vulcan, Achilles, and Mercury, and call him Zha-Vam. They also equip him with the belt that can summon the powers of other mythical gods and heroes, and send him to the future to battle Superman. But the Kryptonian hero persuades Neptune to make him a power-belt akin to Zha-Vam's, and uses it to summon Atlas to help him defeat the villain. He then takes Zha-Vam back to ancient Olympus, where Prmetheus turns their champion back into lifeless clay.