Tired of scaring humans every October 31 with the same old bag of tricks, Jack Skellington, the spindly king of Halloween Town, kidnaps Santa Claus and plans to deliver shrunken heads and other ghoulish gifts to children on Christmas morning. But as Christmas approaches, Jack's rag-doll girlfriend, Sally, tries to foil his misguided plans.
Kris Kringle, seemingly the embodiment of Santa Claus, is asked to portray the jolly old fellow at Macy's following his performance in the Thanksgiving Day parade. His portrayal is so complete that many begin to question if he truly is Santa Claus, while others question his sanity.
Scott Calvin is an ordinary man, who accidentally causes Santa Claus to fall from his roof on Christmas Eve and is knocked unconscious. When he and his young son finish Santa's trip and deliveries, they go to the North Pole, where Scott learns he must become the new Santa and convince those he loves that he is indeed, Father Christmas.
Bitter and hateful, the Grinch is irritated at the thought of a nearby village having a happy time celebrating Christmas. Disguised as Santa Claus, with his dog made to look like a reindeer, he decides to raid the village to steal all the Christmas things.
Inside a snowflake exists the magical land of Whoville. In Whoville, live the Whos, an almost mutated sort of Munchkin-like people. All the Whos love Christmas, yet just outside of their beloved Whoville lives the Grinch. The Grinch is a nasty creature that hates Christmas, and plots to steal it away from the Whos, whom he equally abhors. Yet a small child, Cindy Lou Who, decides to try befriending the Grinch.
9-year-old Alex Pruitt is home alone with the chicken pox. Turns out, due to a mix-up among nefarious spies, Alex was given a toy car concealing a top-secret microchip. Now Alex must fend off the spies as they try break into his house to get it back.
Instead of flying to Florida with his folks, Kevin ends up alone in New York, where he gets a hotel room with his dad's credit card—despite problems from a clerk and meddling bellboy. But when Kevin runs into his old nemeses, the Wet Bandits, he's determined to foil their plans to rob a toy store on Christmas eve.
Having defeated the Joker, Batman now faces the Penguin - a warped and deformed individual who is intent on being accepted into Gotham society. Crooked businessman Max Schreck is coerced into helping him become Mayor of Gotham and they both attempt to expose Batman in a different light. Selina Kyle, Max's secretary, is thrown from the top of a building and is transformed into Catwoman - a mysterious figure who has the same personality disorder as Batman. Batman must attempt to clear his name, all the time deciding just what must be done with the Catwoman.