Plot summary
Twenty years after the events of Kingdom Come, a man who survived the Kansas disaster is granted power by four members of the Quintessence, including Shazam, Ganthet, Zeus, Izaya Highfather, and dubbed Gog.
The power drives him mad, however, and he takes his anger out on Superman, killing him multiple times by traveling back in time. The other four members of the Quintessence are prepared to let things unfold, hoping to achieve their own goals but a shadowed figure who resembles the Phantom Stranger opposes Gog's actions. This figure plans to recruit his agent to stop Gog, leading to a crisis.
As Gog travels closer to the modern DC Universe, the Linear Men panic when they see that their ordered index of time is unraveling. Rip Hunter is tasked by the shadowed figure with stopping Gog, and he recruits Superman, Batman, and Wonder Woman from the Kingdom Come era to help. Meanwhile, four young heroes – Kid Flash, Offspring, Nightstar, and Ibn al Xu'ffasch – try to stop Gog on their own and are eventually recruited to assist Rip Hunter's plan. During the battle, the future Wonder Woman reveals to the present Superman why Gog kept hunting and killing him. After defeating Gog, Hyperman reveals himself and explains that he was hidden by his infant self within the stream of Hypertime upon being rescued from Gog, and Rip Hunter explains the existence of timelines.
In Infinite Crisis, it is retroactively established that Superboy-Prime is responsible for the creation of Hypertime when he fractures the timeline from the pocket dimension he was trapped in.
