Batman faces off against two foes: the schizophrenic, horribly scarred former District Attorney Harvey Dent, aka Two-Face, and the Riddler, a disgruntled ex-Wayne Enterprises inventor seeking revenge against his former employer by unleashing his brain-sucking weapon on Gotham City's residents. As the caped crusader also copes with tortured memories of his parents' murder, he has a new romance, with psychologist Chase Meridian.

In his second year of fighting crime, Batman uncovers corruption in Gotham City that connects to his own family while facing a serial killer known as the Riddler.