While on a stakeout, Judith Gray, a beautiful, tough cop, is trapped inside a warehouse full of toys that have been awakened to murderous life by a strange child of darkness.

Arriving in the small town of Fallwell, Massachusetts to claim her inheritance, horror hostess Elvira receives a less than enthusiastic reception from the conservative locals, including her sinister uncle Vincent.

Batman and his sidekick Robin attempt to the foil the sinister schemes of a deranged set of new villains, most notably the melancholy Mr. Freeze, who wants to make Gotham City into an arctic region, and the sultry Poison Ivy, a botanical femme fatale. As the Dynamic Duo contend with these bad guys, a third hero, Batgirl, joins the ranks of the city's crime-fighters.