Heracles, with permission from his father, Zeus, has sent out a messenger to gather a team. Runaways, children of wicked kings. The X-Men, humans cursed by the gods (as well as a Cyclopean member), and the Four Fantastics, rulers of the island Baxi, have all applied, as well as his own team, the Avengers. Their final challenge is a feat of strength, presented by Tryco Slatterus, Champion Of The Universe, to all of them. Together, they must defeat him in battle. They succeed in doing so, acquiring the Gem Of Power as a reward.