Superman: Action Comics #4

In "Metropolis Doom!", Superman races to stop a mysterious fireball tearing through the skies—only to vanish into the depths of Gorilla City before returning to a city in ruins. With the Invisible Mafia destroyed and the Legion of Doom unleashed, the surviving members of the Justice League, Young Justice, and Teen Titans must rally as Lex Luthor and his allies push Metropolis to the brink.

In the heart of a crumbling Metropolis, Superman, Batman, and Wonder Woman stand as the last line of defense against the overwhelming might of the Legion of Doom. As the city burns and chaos reigns, Red Cloud recalls the moment her powers emerged from a S.T.A.R. Labs accident, and Melody Moore makes a bold move—announcing her run for mayor, her voice cutting through the storm of destruction.

In "Metropolis Doom! Part 4," Superman rallies Young Justice—Tim Drake, Conner Kent, Bart Allen, Cassandra Sandsmark, and their allies—into action as the Legion of Doom and Leviathan launch a coordinated assault on Metropolis. With the Justice League still en route, the young heroes must hold the line, facing off against Lex Luthor, Brainiac, Gorilla Grodd, and other formidable foes in a desperate bid to protect the city.

In the climactic showdown of "Metropolis Doom! Conclusion," Superman stands defiant as the combined forces of the Legion of Doom, Leviathan, and the enigmatic Red Cloud close in on Metropolis. With the Justice League and Young Justice overwhelmed, Clark Kent must face not just Lex Luthor and his allies, but the terrifying power of a secret weapon that could end everything.