Tyrannus, seeking to enlist the Hulk's aid in his battle against the Mole Man for dominion of the Subterranean world, has a plan. He sends his emissary, the powerful Mogol, to befriend the Hulk, winning over his trust. That done, Tyrannus has two incredible brutes to help build his war machine, and lead the charge against the Mole Man. In the seige of Mole Man's city, Mogol suffers a wound that reveals he is, in truth, a robot. Hulk feels betrayed, destroys Mogol, and leaves the field of battle, returning to lay waste to Tyrannus' city.