On a planet in chaos, Superman's descent into madness sets off a catastrophic chain reaction when he inadvertently kills Lois Lane and their unborn son, and subsequently takes control of the Earth to enforce global peace by any means necessary. As Batman forms an underground resistance to oppose Superman, the world teeters on the brink of destruction, threatening to succumb to a police state that silences dissent. The line between heroism and tyranny is tested as iconic heroes clash in an all-out struggle for the future of humanity, with the very fabric of reality hanging in the balance.