After the Penguin sprays Batman with nerve gas, a 12-year-old boy rescues the unconscious hero and hides him in his basement.

Bruce begins to worry when all of his wealthy friends join the same brotherhood group run by Nostromos, a so-called psychic.

Batman discovers a gang of forgotten runaways living deep within the Gotham sewer system.

Professor Milo tries to use an old friend of Bruce Wayne's, Anthony Romulus, to destroy him after Milo injects Romulus with a serum that changes him into a wolf.

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.

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

When a genetic engineer produces a man-cat hybrid, he kidnaps Selina Kyle to provide his creation with a mate.

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.

Selina Kyle uncovers a plot to infect stray animals with a deadly disease that will be transmitted to the human population.

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.

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

Alfred and his friend, Maggie Paige, visit a health spa that is actually run by the nefarious Poison Ivy.

When a man-sized bat ransacks Gotham harbor, Batman suspects that Dr. Kirk Langstrom is drinking his Man-Bat formula again.

Bruce Wayne is temporarily blinded when the Penguin steals a new police helicopter with weaponry developed by WayneTech.

The Joker infiltrates the birthday party of Mayor Hill's son in order to plant a bomb.

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 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.

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

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

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

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

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

Lyle Bolton, Arkham'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.

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

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.