[1] Needing financing, he arranged Operation Overpower by enlisting disgruntled veterans, telling them that they would paralyze Manhattan for a day by seizing control of strategic points throughout the city.

[2] Gideon then established Security City, an isolated planned community where paranoid ultra-conservatives could live away from the rest of America.

[3] Mace later learned the U.S. Army had lost a cobalt bomb in Bermuda, and plotted to bluff the authorities into handing over Chicago to him by claiming he had recovered the weapon and would detonate it.

[4] Mace next convinced illicit organizations, such as the Maggia and Halwani Freedom Front, to fund him in targeting and murdering costumed heroes.

Gideon Mace appears in The Avengers: Earth's Mightiest Heroes "To Steal an Ant-Man" as a member of William Cross's gang.