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.
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.
Fred Claus and Santa Claus have been estranged brothers for many years. Now Fred must reconcile his differences with his brother whom he believes overshadows him. When an efficiency expert assesses the workings at the North Pole and threatens to shut Santa down, Fred must help his brother to save Christmas.
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.
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.
Fueled by cheap whiskey, greed and hatred, Willie Soke teams up with his angry little sidekick, Marcus, to knock off a Chicago charity on Christmas Eve. Along for the ride is chubby and cheery Thurman Merman, a 250-pound ray of sunshine who brings out Willie's sliver of humanity. Issues arise when the pair are joined by Willie's horror story of a mother, who raises the bar for the gang's ambitions, while somehow lowering the standards of criminal behavior.
Two women, one from the United States and one from the United Kingdom, swap homes at Christmastime after bad breakups with their boyfriends. Each woman finds romance with a local man but realizes that the imminent return home may end the relationship.
When Billy Peltzer is given a strange but adorable pet named Gizmo for Christmas, he inadvertently breaks the three important rules of caring for a Mogwai, and unleashes a horde of mischievous gremlins on a small town.