A second Gog, this time one native to Earth-0 (the foundation Earth), was also the survivor of a tragedy in Kansas. But, this Gog was one of the survivors of the destruction of Topeka during the opening stages of the Imperiex War. He was saved by Superman who said he’d find the boy’s parents, but they were already dead. In the chaos and confusion it was the boy who found their bodies. The knowledge of his saviour and his inability to save his parents would haunt the boy for the rest of his life (Action Comics #813). As an adult he devoted his life to the study of time travel with the intention of saving the rest of his family who had been killed during the Imperiex War. It took him over thirty years, but he eventually discovered a method of time travel.
Cruelly he found that his method would only take him back a short distance in time, not even far enough back to save his parents. He made thousands of attempts over the next two hundred years, but all resulted in failure. Eventually his motivation changed from idolisation of Superman into hatred for his inability to save his parents. In search of revenge he rewrote his own history, imprinting on his child self a new compulsion – kill Superman! (Action Comics #825).
This Gog, or another version of him, appeared in Smallville to ambush Superboy (Conner Kent, a teenage clone of Superman) and his Teen Titan friends in a feint to draw Superman’s attention. Their battle tore through the historic centre of the town with Superman and Superboy drawing Gog’s fire while Kid Flash and Wonder Girl got the civilians to safety. Gog’s teleporting kept Superman and Superboy off-balance and they both took a pounding. Gog cut Superman with his trident and injected liquefied kryptonite into the wound. He then beat Superman until he believed he was dead and then vanished (Action Comics #815-816).
Next Gog recruited a mild-mannered repo-man called Jesse and turned him into a monster which fought the slowly weakening Superman (Action Comics #822-823). The Kryptonite poison caused Superman to become weaker and weaker. After fighting the Kandorian zealot Preus (another of Gog’s lieutenants) Superman was exhausted, but he was confronted by a legion of duplicated Gogs. The future Gog had used his time travel expertise to duplicate himself into an army (Action Comics #824).
Superman’s saviour that day came in the unlikely form of the monster that had once saved him. Doomsday, newly sentient, refused to allow anybody else to kill Superman and waded into Gog’s legions. Even after Gog appeared to capture Superman Doomsday remained in the field. It was inspired by Superman’s courage to mend its ways and to adopt Superman’s colours. Doomsday’s League of Superman battled the Army of Gogs in a single battle that ranged for a century. The prime Gog eventually grew weary and withdrew from the battle to amused himself by torturing his captive Superman. However, even that grew tiresome after two centuries.
Superman and Gog grew old together. For five hundred years the two white-haired enemies were locked in a seemingly eternal game of resolve – the shackled Superman and the inquisitional Gog. With his last breadth Superman shamed Gog and dispelled his hatred. A moment later Doomsday breached Gog’s defences. He could have killed Gog, but the old man convinced him that together they could undo the future they had created. They travelled back in time and undid the actions of their past selves, nullifying their own existence as history was over written (Action Comics #825).