Earth-22 was one of the worlds of the Multiverse in the New 52.
On this Earth, after the Justice Society of America broke up, no organization stepped up to follow on their role as an examples to the younger heroes, but the examples of individual heroes was enough... until Magog. This violent superhuman vigilante killed the Joker in revenge for his murder of the entire Daily Planet staff. His subsequent public pardoning broke Superman's faith in justice, and for ten years he went into seclusion while younger heroes followed the example of Magog, becoming little different from the criminals they fought.
Magog's Justice Battalion ultimately caused a disaster which left most of Kansas a radioactive no-go zone and shocked Superman out of retirement. Uniting his friends into a 'Justice League', he inadvertently sparked a war between two factions of superhumans that grew so cataclysmic that it caused the United Nations to launch a nuclear strike on the battle site. Superman survived and attempted to kill the United Nations in response, but was talked down by pastor Norman McCay and the other surviving superheroes. This led Superman to become an active example to the heroes of the world.
