Two years after the events of the first Superman movie, Superman gets sent by Sydney Happersen who "informs" has gotten bailed out of belle reve to warn him that others got sent by a mysterious door with a universe, called "salvation" by an already crazy rick flag sr. And he has no choice but to team up with lex luthor who later betrays him as the next second rick flag sr. Betrays him, they are now stuck on salvation soonly meeting other heroes and realizing brainiac is pulling the strings of salvation.