The Scarecrow uses a fear chemical triggered by adrenaline on Gotham's greatest athletes, then bets against them to reap the winnings.

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.

On the anniversary of the death of Bruce's parents, Batman expresses doubts about whether or not he should continue his one-man war against crime.

The Joker kidnaps three prominent citizens during Christmas and challenges Batman to find him before midnight.

When Edward Nygma's greedy boss unjustly fires genius him, Nygma seeks revenge in a new guise--as the Riddler!

To prove that he has a superior mind, the Riddler lures Batman into a contest inside a virtual reality computer game.

While engaged in a high-speed chase, the Penguin's gang escapes and the Batmobile is virtually demolished.

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.

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!

Commissioner Gordon is rumored to be taking bribes from Rupert Thorne. His daughter Barbara sets out to prove that he's innocent.

Robin, who discovers that Gil Mason is in league with a powerful crime boss, encounters Batgirl as she tries to clear her father's name.

When Clayface's clay-like body begins to disintegrate, he is forced to steal to pay for the expensive ingredients of a possible remedy.

Wealthy socialite Veronica Vreeland returns from Central America bringing tiny handmade dolls for all her friends--but the dolls are controlled by the Mad Hatter!

Crime boss Rupert Thorne forces his older brother, a doctor, to perform delicate surgery on Rupert--and kidnaps Dr. Leslie Thompkins to assist.

Poison Ivy appears to have stopped her crime spree when she marries a doctor with two sons to raise. However, crimes continue occurring in the Poison Ivy style, leaving Batman to question her innocence.

Killer Croc escapes when being transported to prison and hides out with a group of circus people.

Ra's Al Ghul steals a sacred Egyptian scroll that Bruce Wayne donated to the Gotham museum.

All of Batman's enemies team together to put Batman on trial and send him to Arkham Asylum.

Harley Quinn agrees to help Batman and Robin find the location of a stolen atomic bomb placed somewhere in Gotham by the Joker.

Rupert Thorne hires the chemically-augmented assassin Bane to kill Batman.

Batman and Robin are puzzled by the sudden kidnapping of Twoface, who was on his way to have his face fixed.

The Riddler appears to have gone straight when he develops a new and successful puzzle based toy.

Baby-Doll, a former child star, pours out her frustrations on her TV family by kidnapping them and holding them hostage.

The Clock King plots against Mayor Hill after he steals an invention that allows him to travel at super speed.

Harley gets herself into a whole mess of trouble after she steals Bruce Wayne's car and kidnaps his girlfriend.

Batman and Robin investigate a string of crimes committed by a group of famous comedians brainwashed by the Joker.

Batgirl and Catwoman team up to investigate the theft of a rare cat statue.

Lyle Bolton Arkam's former chief of security becomes the vigilante Lock-up and kidnaps Commissioner Gordon and Mayor Hill seeing them as the cause of rampant crime in Gotham City.

Aging billionaire Grant Walker breaks Mr. Freeze out of prison so he can use the scientist's knowledge to can gain immortality and cover the world in a new ice age.

Batman tracks three wealthy playboys who commit crimes out of boredom.

Batman and Robin learn about the exploits of Jonah Hex an Old West crimefighter who once dealt with the immortal Ra's Al Ghul.

Catwoman's attempt to go straight runs into problems when she is enticed into one last job by the Ventriloquist.

Batman helps Detective Harvey Bullock who appears to be the target of someone's revenge.

Alfred, a former British spy, is called into duty and becomes of the target of the Red Claw.