December 17.Harley Quinn bemoans her fate to her friend, Poison Ivy, as they stay holed up in the skuzzy Gotham Hotel. With a raised eyebrow of devious foreboding, Ivy assures the rambunctious 'Harl' that she has a plan that will make it "the happiest holiday ever." Later on, at the Vreeland estate, we catch up with Bruce having a pleasant conversation with heartthrob Veronica about forthcoming vacation plans. Much to "Brucy's" chagrin, his quiet moment is interrupted by a gaggle of suitors all intent on snagging a moment with Gotham's most eligible bachelor under the mistletoe. Backing away in order to make an escape, he finds himself in the arms of a shadowy female figure who – seizing him by his necktie – plants a big one right on his kisser. Finding himself completely discombobulated as to what exactly just transpired, he makes his way outside with the intent to head home. On his way to his car, however, he's intercepted by Poison Ivy and Harley Quinn, with a look on his face like he cannot resist their every command no matter how hard he tries. While in the car, Harley kindly reveals exactly what happened: Poison Ivy used a special lipstick laced with a chemical in order to infect Bruce, via the aforementioned kiss. They also boldly pronounce that they intend to have a night on the town at Mr. Wayne's expense. The girls shop endlessly buying clothes and jewels, all the while Bruce begrudgingly (yet uncontrollably) puts it all on his credit cards. Finally, Bruce begins building up a will as the chemical's potency begins to wane. Vocalizing his discontent, the girls decide it's time for another dose; backing away from Harley's approach, however, Bruce falls down a conveniently placed 'out of order' open elevator shaft. Believing the slip to be his last, Harley and Ivy leave Bruce for dead, yet as they turn their backs and walk away, a portentous hand reaches out of the abyss and grips the edge of the floor. As the duo burn rubber away from Bergduffs Department Store, the silhouette of the Bat-Man can be seen swooping after them. When Harley spots him through the back window, Ivy wastes no time in making an escape: she grabs the wheel of the car and ram raids the Wacko Toys shop. Probing through the pitch black with his flashlight, Batman soon needn't wonder where they've gone to as a huge toy soldier comes crashing down nearly upon him. Looking up, he can see them taunting him atop a citadel of toys. Not one to decline a challenge, Batman eagerly ascends the tower only to find a boxing glove by Poison Ivy and a wooden sledge hammer from Harley Quinn. Plummeting to the bottom, the girls cannot resist a gloat as they make – what they believe will be – their exit. But the quick minded Batman has other plans: he uses his grappling hook to snag the base of a massive Christmas tree, which he then yanks hard, causing it to topple over directly on the would-be escapees.