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.
Luther Krank is fed up with the commerciality of Christmas; he decides to skip the holiday and go on a vacation with his wife instead. But when his daughter decides at the last minute to come home, he must put together a holiday celebration.
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.
Miser Ebenezer Scrooge is awakened on Christmas Eve by spirits who reveal to him his own miserable existence, what opportunities he wasted in his youth, his current cruelties, and the dire fate that awaits him if he does not change his ways. Scrooge is faced with his own story of growing bitterness and meanness, and must decide what his own future will hold: death or redemption.
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.
Meet Howard Langston, a salesman for a mattress company is constantly busy at his job, and he also constantly disappoints his son, after he misses his son's karate exposition, his son tells Howard that he wants for Christmas is an action figure of his son's television hero, he tries hard to to make it up to him. Unfortunately for Howard, it is Christmas Eve, and every store is sold out of Turbo Man, now Howard must travel all over town and compete with everybody else to find a Turbo Man action figure.
Each Christmas, Santa and his vast army of highly trained elves produce gifts and distribute them around the world in one night. However, when one of 600 million children to receive a gift from Santa on Christmas Eve is missed, it is deemed ‘acceptable’ to all but one – Arthur. Arthur Claus is Santa’s misfit son who executes an unauthorized rookie mission to get the last present half way around the globe before dawn on Christmas morning.
Better watch out! The big guy in red is coming to town once again. This time, Scott Calvin -- also known as Santa Claus -- finds out there's an obscure clause in his contract requiring him to take on a wife. He has to leave the North Pole to fulfill his obligations, or else he'll be forced to give up his Yuletide gig.