Cosmo Krank seemed to be an ingenious toymaker, but all of his creations were dangerous for kids to use, leading to Bruce and Wayne Industries shutting his company down. However, Bruce soon finds himself the target of the toymaker, who seeks revenge by killing him with newer, diabolical versions of his toys. Knowing that Batman must bring him down, things are not so easy when Commissioner Gordon assigns Detective Cash to be Bruce’s bodyguard until the demented villain is arrested, forcing Bruce to find a way to ditch Cash in order to become the Batman and stop Cosmo.
