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

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.

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.

Batman investigates a theft of bearer bonds intended for the starving people of a poor country.

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

Dr. Hugo Strange's invention, a machine that reads people's thoughts, leads him to discover that Bruce Wayne is Batman.

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

Veronica Vreeland, a socialite desperate to create a novel party, makes the mistake of inviting the Penguin as her guest of honor.

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.

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.

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

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