He was later discovered by another collective consciousness known as Null the Living Darkness. In his current broken state Null took control of him and sent him on a campaign against a parallel universe, Earth, inhabited by the Squadron Supreme. The Overmind mentally enslaved both the Squadron and that Earth's leaders while posing as the U.S. president Kyle Richmond, and began construction of an interstellar armada to invade other worlds. When Hyperion brought the Defenders to assist him, they freed the Squadron. Meanwhile, Null had leeched away the Overmind's mental energies, but yet another psychic composite entity of seven human telepaths empowered by the assembled heroes, defeated him and inhabited the weakened Grom.