During the Christmas season, Harley and Poison Ivy lure Bruce into a hypnotic shopping spree while Joker threatens Gotham with a sonic bomb loud enough to deafen anyone within earshot of its explosion.

Mr. Freeze returns and seeks revenge on Gotham City, with a big surprise for Batman.

In an effort to further distance himself from Batman, Nightwing tries to go it alone to stop a smuggling ring and gets unexpected help from the seductive Catwoman.

Crime boss Edward "The King" Barlow dies and in his will leaves his arch-rival, the Joker, a large fortune. Joker immediately goes on a shopping spree, even searching for a replacement for Harley Quinn, but realizes too late that all the money is fake.

Former stuntwoman and adrenaline junkie Roxanne Sutton becomes the rocket-riding thief Roxy Rocket, to chase danger and excitement.

A genetic engineer goes overboard in creating bigger livestock and loses all his money. A year later, an army of mutant farm animals terrorize Gotham City.

A group of Gotham City youths tell their stories about what they believe the Dark Knight to really be like. One story is reminiscent of the Dick Sprang era comics from the 1950s and/or the 1960s live-action Batman television series. Another is reminiscent of Frank Miller's 1986 graphic novel The Dark Knight Returns.

Exposure to a weird mixture of chemicals, including the Joker's laughing gas, changes straitlaced newsman Jack Ryder into the crazed Creeper. He looks to kill the Joker, and develops a much unwanted crush on Harley.