Le soir du réveillon, Teddy et Kate Pierce décident de filmer leur salon pour piéger le Père Noël. Après l'avoir repéré, ils le suivent et montent dans son traîneau, mais ils provoquent un accident lorsque Santa prend conscience de leur présence. Ce dernier ne pouvant poursuivre sa tournée, Noël est en danger. Kate et Teddy l'aident alors à sauver Noël.
The story follows an anthropomorphic Jack Russell Terrier named Olive (voiced by Drew Barrymore), who does not act at all like a dog. ("The Days Still Remaining 'Till Christmas") While in town, she meets Martini, a con artist penguin (voiced by Joe Pantoliano), from whom she buys a "Rolexxx". When she returns home from some errands, she finds her owner, Tim (voiced by Jay Mohr), putting away Christmas decorations and announcing morosely that there "won't be any Christmas".
À Narbonne, aux environs de Noël. Dans l'espoir de pouvoir s'offrir un duffle coat, Daniel (Jean-Pierre Léaud) multiplie les petits boulots. C'est ainsi qu'il accepte la proposition d'un photographe : se déguiser en père Noël pour poser dans la rue avec les passants. Ce qui lui vaut l'occasion d'intéresser les filles sous son déguisement.
La nuit de Noël, dans une petite maison, huit enfants dorment dans un grand lit, rêvant au Père Noël. Soudain, il arrive volant dans son traîneau et se pose sur le toit. Il dépose son sac, sort une trompette et donne vie aux jouets...
In the Forest of Burzee, where many immortals live (such as Knooks, fairies, and nymphs), their leader, Ak, the Master Woodsman of the World (governor of all forests), finds a human baby abandoned and places him in the care of the lioness, Shiegra. A wood nymph named Necile thereupon adopts the baby; later named Nicholas. Meanwhile, a shapeshifting pixie named Wisk is catapulted to Burzee over the mountain where the evil Awgwas live. When Nicholas reaches young adulthood, Ak shows him how mortals live, giving him a magic sash that makes him invisible. Nicholas sees that the humans, mostly the children, live cruel and unfair lives, mostly in poverty or child abuse (enforced by the Awgwas). Eventually, Nicholas and Wisk move to a spot near both Necile and the humans. The Knooks build a house for him, and Necile gives him a cat, whom he names Blinky. Nicholas travels to a village, in which he stops a baby from crying, and a girl named Megan talks for the first time. To help the children, Nicholas carves a toy cat. One day in winter, Ethan the Cripple, a boy from a village, travels to his house to bring him a leaning stick. He nearly freezes to death, but Nicholas takes him into his house, much to the disappointment of King Mogorb, leader of the Awgwas. When he meets Blinky, Nicholas gives him the toy cat.
In the London suburb of Finchley, the Pevensie children, Peter, Susan, Edmund and Lucy, are endangered by a Second World War attack of German bombers. They are then evacuated to the country home of Professor Digory Kirke, who is not accustomed to having children in his house, as Mrs Macready, the strict housekeeper, explains.
The old Santa Claus (Bridges) has seven days to find the new Santa Claus (Tucker) and pass the torch to him. The only problem is the new Santa Claus is a curmudgeon who lost his wife and his will to live. He works as a reporter for The Chicago Sun Times, which is a throwback to Yes, Virginia, there is a Santa Claus, and has to rediscover the joy of Christmas. At the last minute, he realizes what is important and becomes the new Santa Claus.
On Christmas Eve in the late-1950s, a boy witnesses a train called the Polar Express that is about to embark to the North Pole. When the boy examines the engine, the conductor lets him board the train. The boy meets other children, including a girl and a know-it-all kid. When the train picks up Billy, the hero boy applies the emergency brakes. Billy initially declines to board but changes his mind. The conductor summons a waiter team, who give the children hot chocolate, and the girl stows away one cup under her seat to give to Billy, who is alone in the observation car. The girl and conductor deliver the hot chocolate cup to Billy until the hero boy discovers the girl’s ticket is unpunched. He loses it before he can return it. After the ticket is abused by the wind and animals, it slips back in the train. The girl explains her lost ticket, and the conductor considers ejecting her before taking her for a walk on the top of the train instead. The hero boy locates the lost ticket and pursues them.
When Cole's Department Store's Santa Claus gets drunk before taking part in the Thanksgiving parade, Dorey Walker (Elizabeth Perkins), Cole's director of special events, fires him and must find a replacement immediately. She spots an old man (Richard Attenborough) berating the inebriated Santa, and begs him to take over. He introduces himself as Kris Kringle. Kris does so well during the parade that he is immediately hired to be Cole's main Santa for the holiday period. All the children in New York begin to believe that he is the real Santa, with the exception of Dorey's six-year-old daughter Susan (Mara Wilson). Dorey's boyfriend, Bryan Bedford (Dylan McDermott), does his best to convince Susan to believe. While being babysat one night by Kris, Susan shares with him her Christmas wish, she would like a dad, a house (used every year for the Cole's catalogue photoshoot) and a baby brother. Kris asks if she would begin to believe in Santa if she got all those things. Susan agrees that she would.
Scott Calvin is a divorced 38-year-old advertising executive, who is also a father to his son Charlie. Charlie's mother, Laura, is now married to psychiatrist Neil Miller. After Scott reads "A Visit from St. Nicholas" to Charlie on Christmas Eve, he and Charlie are awakened that night by sounds on the roof. After confronting a man on the roof, who inadvertently falls off when Scott startles him, then vanishes leaving his Santa Claus outfit behind, they discover eight reindeer on the roof and Charlie convinces Scott to put on the suit and finish Santa's work for him. As the morning comes, the reindeer return to the North Pole to Santa's Workshop, where the head elf Bernard explains that, due to a clausical contract written on a card Scott found on Santa, in putting on the suit and entering the sleigh he has accepted the "Santa Clause" and has agreed to the responsibilities of that position. He tells a skeptical Scott that he has eleven months to get his affairs in order before reporting to the workshop at Thanksgiving permanently.
A group of local reindeer herders have their Christmas disturbed by excavations on the mountain. A scientist has ordered a team of workers to dig open what he calls "the largest burial mound in the world". An explosive used by the team uncovers what is referred to as a "sacred grave". However, the occupant of the grave is still alive.
The movie is set in December 1910. Mrs. Santa Claus is trying to convince her husband, Santa Claus, to take a new route, but he is preoccupied with the Christmas rush and won't listen. Disgruntled, she takes the sleigh out herself, but is forced to land in New York City, where she is stranded when one of the reindeer (Cupid) becomes injured. As "Mrs. North", she takes up board with a family of Jewish immigrants, who don't celebrate Christmas. She befriends many of the local children and women, and becomes involved with political issues of the period such as child labor and women's suffrage.
The narrator recites the first 10 words of The Night Before Christmas before saying, "Oh, wait. Different story, but we'll still see a mouse". The narrator announces new tales of giving and loving, and a book opens to show pop-up elves.
The oil company is headed by Sumner Murdock (Mason Adams). The exploration project in the North Pole is recommended and managed by Michael Baldwin (Paul Le Mat).