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.

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.

Livewire escapes during a prison transfer and runs amok in Gotham, joining forces with Poison Ivy and Harley Quinn. With the Dark Knight away, Batgirl teams up with Supergirl to face the deadly trio.

Bruce Wayne, along with other wealthy denizens of Gotham, fall in love with their ideal mate, who all happen to have green eyes. Wayne decides to marry, and gives up being Batman forever. However, an old enemy's latest plot is being set into motion...