Fan Casting Justice League: Crisis On Infinite Earths

After much discussion amongst the Justice League, plus a brief confrontation with the Crime Syndicate of America in Arkham Asylum, Clark Kent, better known as Superman, decides to launch a rescue mission to find the missing Bruce Wayne, while also facing enemy variants from other universes, as with Barry Allen's accidental creation of the Flashpoint timeline, the multiverse has begun to cave in on itself. Meanwhile, Bruce and his father, Thomas Wayne, are now in the custody of Ultrawoman, Lex Luthor, and most importantly, Martha Wayne, the Flashpoint Joker, and must find a way to defeat the three villains before they enact their plans of taking over not just that universe, but the entire multiverse as a whole...