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.
Selina Kyle is kidnapped by an evil scientist who turns her into a real cat-woman.Selina Kyle is kidnapped by the villainous genetic engineer Dr. Emile Dorian and becomes his latest experiment to provide his man-cat hybrid named Tygrus with a mate. Batman learns of this and comes to the island to rescue Selina. He is captured and forced into a deadly game of cat-and-flying mouse as Tygrus hunts Batman through the island's jungles.
Batman must thwart the Scarecrow's plan to poison Gotham's water supply with a chemical that induces hallucinations.
Simon Trent, an actor best known for his past role as "The Gray Ghost", is on the verge of bankruptcy thanks to his declining career. To save himself, he sells off all of his Gray Ghost merchandise. Immediately afterwards, a series of crimes related to the old show begin to occur. Batman, having himself been inspired partly by the show to become the crimefighter he now is, goes to Trent for help, and they team up to put an end to the crimes.
In this episode, the voice of Simon Trent is none other than Adam West, the man who played Batman in the 1960's version of Batman
Selina Kyle uncovers a plot to infect stray animals with a deadly disease that will be transmitted to the human population.
On the anniversary of the death of Bruce's parents, Batman accompanies Leslie Thompkins to Crime Alley to place roses on the spot where they were gunned down. Meanwhile, Commissioner Gordon is on stakeout to arrest James "The Jazzman" Peake during a drug smuggling ring. Batman had promised to be there, but arrives late to find a gun battle going on. He helps defeat the gangsters and arrest the Jazzman, but at a high cost—Gordon is severely wounded. The incident traumatizes Batman, and he decides to give up crime-fighting, despite the Jazzman escaping prison to carry out his personal vendetta against Gordon (who had sent him to prison six years before).
Joker, Killer Croc, Penguin, Two-Face and Poison Ivy all meet at a poker table, each telling a tale of times when they almost defeated Batman. At the same time, Harley Quinn is about to kill Catwoman. Will Batman be able to save her?
Batman investigates the appearance of a werewolf-like creature in Gotham, not realizing that the monster happens to be one of Bruce Wayne's associates - Anthony Romulus, ex-Olympic champion. Behind the scheme is twisted chemist Professor Milo.
When a man-sized bat ransacks Gotham harbor, Batman suspects that Dr. Kirk Langstrom is up to his old tricks, taking the Man-Bat formula again. Batman isn't the only one. Kirk's wife, Francine, is so distrustful of her husband that she decides to leave him. After further investigation, Batman discovers that this Man-Bat is not Kirk, but someone else.
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.
Edward Nygma creates the game, "The Riddle of the Minotaur", and makes millions for the company Competitron. He is then fired by his superior, Daniel Mockridge, who wants the profits for himself. Nygma vows revenge, and two years later, he takes up the mantle of the Riddler and traps Mockridge inside a life-sized version of the Minotaur maze. Batman's sympathy is with Nygma, but he and Robin have to stop him before he kills Mockridge, despite the fact that Mockridge cannot legally be brought to justice.
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.
While following Count Vertigo's trail, Batman encounters Talia, daughter of the head of the Society of Shadows, who was sent by her father to prevent the capture of a sonic drill that the Count stole. But after his identity is mistakenly revealed to Talia, Batman remains off-balance as to where her true loyalties lie.
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
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.
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 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.
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.
After learning the name of an extortion ringleader, Batman mysteriously refuses to let Robin continue the investigation with him.
Veronica Vreeland is looking for a way to create a splash with her next party and arrives at the idea of having a former criminal in attendance—especially if there's one whose manners would create a stir. Penguin, who has recently reformed, fits the bill perfectly. In the process of convincing the Penguin to come to her party, Veronica finds she likes the corpulent little guy. For his part, the Penguin begins to fall in love with her, until he overhears that he is merely being used...
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.
Kyodai Ken kidnaps Kairi, daughter of Yoru Sensei, the martial arts instructor who taught both Kyodai and Bruce. The ninja's ransom for her is a scroll that teaches the location of the fabled Death Touch.
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.