A scientist known as Mortimer Dauoi attempted to recreate the Squadron Supreme by grafting their DNA codes onto the genetic structure of several corpses. The experiment went horribly wrong and the new Squadron Supreme were out of control and were re-animated as flesh-eating zombies.
Unlike the rest of the Squadron, however, Nuke instead felt the need to feed upon radioactive elements and escaped the Project PEGASUS facility and travelling to West Vermont where he was attracted to a nuclear power plant. After causing chaos and destruction and spreading the zombie plague through West Vermont, the Government decided to nuke the entire area to contain and eliminate the plague. Nuke however survived the blast and is the only surviving member of the Squadron Supreme experiments.