It's Christmastime, and the Griswolds are preparing for a family seasonal celebration. But things never run smoothly for Clark, his wife Ellen, and their two kids. Clark's continual bad luck is worsened by his obnoxious family guests, but he manages to keep going, knowing that his Christmas bonus is due soon.

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.

Brad and Kate have made something of an art form out of avoiding their families during the holidays, but this year their foolproof plan is about go bust -- big time. Stuck at the city airport after all departing flights are canceled, the couple is embarrassed to see their ruse exposed to the world by an overzealous television reporter. Now, Brad and Kate are left with precious little choice other than to swallow their pride and suffer the rounds.

Kevin McCallister's parents have split up. Now living with his mom, he decides to spend Christmas with his dad at the mansion of his father's rich girlfriend, Natalie. Meanwhile robber Marv Merchants, one of the villains from the first two movies, partners up with a new criminal named Vera to hit Natalie's mansion.

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.

Siblings Kate and Teddy try to prove Santa Claus is real, but when they accidentally cause his sleigh to crash, they have to save Christmas.

When a reporter goes undercover as a nanny to get the inside scoop on a playboy prince, she gets tangled in some royal intrigue and ends up finding love - but will she be able to keep up her lie?

A married couple tries to steal back a valuable heirloom from a troublesome kid.

When young Buddy falls into Santa's gift sack on Christmas Eve, he's transported back to the North Pole and raised as a toy-making elf by Santa's helpers. But as he grows into adulthood, he can't shake the nagging feeling that he doesn't belong. Buddy vows to visit Manhattan and find his real dad, a workaholic publisher.

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.