When the glamorous magician Zatanna is framed for a robbery during her act, Batman swings to her defense. Zatanna is grateful though a little puzzled by the Dark Knight’s commitment to prove her innocence, but the two heroes unite and use the skills her father, Zatara, taught them to expose and combat the culprit: an evil illusionist named Montague Kane.
When a small time gang member seemingly kills Batman by accident, he gets involved with gangs all over Gotham, as well as the Joker and Rupert Thorne.
Thanks to a freak accident during a high-speed chase, the Batmobile is virtually demolished. After Batman takes the car to his personal mechanic, Earl Cooper, the Penguin makes his move and tampers with the Batmobile, putting it under his control.
When the Joker fires Harley, she tries going on a crime spree of her own, joining up with Poison Ivy, and the two become Gotham’s Queens of Crime, much to Joker’s fury.
Fishermen discover that Gotham’s fish all have the Joker’s colors and signature smile. Batman investigates, and realises that the Joker is hoping to make money off of these new fish by having them trademarked. After two government employees are killed by Joker toxin, Batman examines that specific fish, and sees that it is actually a Japanese one, meaning that the Joker is hiding at the Aquarium. Bullock tracks the Joker down, but is captured and used as live shark bait as part of a trap for Batman. Can Batman save him in time?
Seeking to prove once and for all that his is the superior mind, the Riddler lures Batman into a riddle-solving contest inside the virtual reality of a computer game in order to save Police Jim Gordon’s life. In the course of solving the riddles and escaping the Riddler’s traps, Batman learns that he is able to manipulate the virtual reality landscape much like the Riddler does