Geiger, Mister Nitro, Reactron, Neutron, Professor Radium, and Nuclear were sent by Luthor’s Society to find the chemical leak in Bludhaven. They came into conflict with government agents known as SHADE. They called themselves the Nuclear Legion. Geiger was killed alongside the powerless Kid Devil, when Kid Devil piloted a plane up in the air, so Geiger would not kill innocents when he erupted.
