Gotham City's underworld is thrown into turmoil as its crimelords start slipping into a rabid-and murderous-frenzy. Is it just a coincidence or part of an elaborate and sinister power play? One thing's for sure: the machinations of the Scarecrow and the Penguin will have Batman hard-pressed to restore order. Worse, Batman may have met his match in the vicious Scarebeast!