When the evil Scarecrow exposes the Teenage Mutant Ninja Turtles to fear toxin, the heroes in half-shells must face their worst nightmares. Meanwhile, Batman's worst fears have already come true as he takes on the Joker and the super-villain Shredder! BATMAN and the TEENAGE MUTANT NINJA TURTLES team up in this one-of-a-kind comic series. Along with action-packed art, these fast-paced stories are sure to be a WHAM! BAM! SMASH! hits.