It's a "Cwisis on Infinite Eawths" as the World's Greatest Super-Heroes must enlist the aid of the world's Looniest Tunes to stop the merging of their two worlds!

Written By:
Mark Evanier
Joe Staton
Mike DeCarlo, Tom Palmer
Cover By:
Mike DeCarlo, Todd Klein, Joe Staton, Trish Mulvihill, Tom Palmer