Catwoman steals a valuable necklace to fund the purchase of land for a mountain lion preserve but is thwarted by a group of terrorists.
When a vicious bat creature known as Man-Bat, starts terrorizing Gotham City, everyone mistakenly thinks that Batman is the culprit. Batman must find out who the mysterious Man-Bat is and clear his own name.
Brilliant cryogenics expert Dr. Victor Fries is transformed into Mr. Freeze, a vengeful creature who can only survive in subzero temperatures.
Roland Daggett disguises himself as Bruce Wayne in an attempt to attck Lucius Fox. Daggett gets poisoned and becomes Clayface.
Clayface learns that the man responsible for his disfigurement is to appear on TV, promoting a skin conditioner containing the same chemical that deformed him.
An aging Mob boss learns his drug dealings have contributed to his son's drug addiction.
In order to save his own life, An accountant named Charlie Collins must do the Joker a favor to kill Commissioner Gordon. Can Batman stop him before this act goes underway...
When Catwoman infiltrates the underground headquarters of the terrorists, both she and Batman are captured and left to die as victims of a viral plague.
When District Attorney Harvey Dent is poisoned after a dinner date, Batman makes the horrifying discovery that his date was Poison Ivy, a plant-obsessed villainess.
A horrifying villain named Scarecrow spreads fear gas and wreaks havoc at Gotham State University.
The Joker infiltrates the birthday party of Mayor Hill's son in order to plant a bomb.
Batman's friend, Dr. Leslie Thompkins, is taken prisoner by a ruthless land developer after she uncovers his devious plans.
Bullock's account of a botched sting operation is so at odds with the other officers' testimony that the police investigator suspends everyone involved.
When a maniacally punctilious man faces financial ruin because of attorney Hamilton Hill, he transforms into the devious Clock King and swears revenge on Hill, now the mayor of Gotham.
The Joker employs a lethal mind-altering laughing gas to transform the citizens of Gotham into total fools.
Alfred and his friend, Maggie Paige, visit a health spa that is actually run by the nefarious Poison Ivy.
District Attorney Harvey Dent hides a deep dark secret--he has a second personality, Big Bad Harv, a tough gangster.
Two-Face, the former Harvey Dent, begins an aggressive campaign against his hated rival, Rupert Thorne.
The Scarecrow uses a fear chemical triggered by adrenaline on Gotham's greatest athletes, then bets against them to reap the winnings.
After the Penguin sprays Batman with nerve gas, a 12-year-old boy rescues the unconscious hero and hides him in his basement.
Batman suspects that an imprisoned Detective Bullock may be innocent after he is arrested for murder. The real murderer turns out to be Killer Croc, who framed Bullock to get revenge.
Bruce begins to worry when all of his wealthy friends join the same Brotherhood group run by Nostromos, a so-called psychic.
When men begin disappearing at a bowery, Bruce Wayne decides to go undercover as a worker. He loses his memory after he is attacked, kidnapped, and forced to work in a mining camp.
The Mad Hatter puts the city of Gotham under his control in an attempt to impress a woman, Alice, with whom he is in love. However, when he discovers that she likes someone else, he plans to exterminate the competition and kidnap Alice.
Batman investigates a theft of bearer bonds intended for the starving people of a poor country.
Bruce Wayne wakes up to find that his parents are not dead, he is not Batman, and he's engaged to Selina Kyle!
Batman discovers a gang of forgotten runaways living deep within the Gotham sewer system.
When Wayne Enterprises is robbed by a mysterious figure known as the Ninja, Batman and Robin discover that the Ninja is an old nemesis of Bruce Wayne.
Dr. Hugo Strange's invention, a machine that reads people's thoughts, leads him to discover that Bruce is Batman.
Batman must thwart the Scarecrow's plan to poison Gotham's water supply with a chemical that induces hallucinations.
Selina Kyle uncovers a plot to infect stray animals with a deadly disease that will be transmitted to the human population.
The Joker makes a very sneaky escape from Arkham Asylum to spread his own Christmas Cheer through Gotham City.
Karl Rossum, owner of Cyberton Labs has been replacing important authority figures with robot look-alikes. Batman invites a young woman to dinner, not knowing that she is a robot as well.
After a rich, cocky billionaire builds a casino mocking the name of the Joker, The Clown Prince of Crime seeks revenge on billionaire Cameron Kaiser.
A confused robot that believes he is Batman causes problems for the real Dark Knight.
The Joker lashes out when he is denied copyright to his newly created "Joker Fish."
Harley Quinn has broken off with the Joker and teams up with Poison Ivy. Together they wreck havoc on Gotham and now Joker wants a piece of the action.
After learning the name of an extortion ringleader, Batman mysteriously refuses to let Robin continue the investigation with him.
Despite Batman's orders not to, Robin pursues Tony Zucco, the criminal who was responsible for the death of Robin's parents.
Bruce Wayne is temporarily blinded when the Penguin steals a new police helicopter with weaponry developed by WayneTech.
After a fortune disappears from a gem exposition, Batman investigates. He discovers that the crime may have been committed by an invisible man, an ex-con named Lloyd Ventris.
When Robin is mysteriously abducted, Batman's search leads him to meet Ra's Al Ghul, leader of The Society of Shadows, whose daughter, Talia, has also been kidnapped.
Batman discovers Ra's Al Ghul's plan to flood Earth with chemicals and return it to a lush, green planet--which will destroy all life that now exists!
Batman investigates a series of baffling crimes and discovers that the crime czar is a wooden dummy, manipulated by a mild-mannered man called the Ventriloquist.
Believing he's the reincarnation of Zeus, a mad shipping magnate mounts a stolen electron cannon atop his penthouse to shoot "lightning bolts" at the "wicked mortals" below.