Santa Claus (Tim Allen) has given in to his wife Carol (Elizabeth Mitchell) and is bring the family up to the North Pole. You see Mrs. Claus is pregnant with their first child. So Sylvia and Bud Newman (Ann-Margaret and Alan Arkin) are coming to Claus's for the holidays. Well they think they are going to Canada and a toy factory rather than the North Pole. The Miller's are also coming for the visit to the North Pole. Neil and Laura (Judge Reinhold and Wendy Crewson) are also bringing their daughter Lucy (Liliana Mumy) and son Charlie (Eric Lloyd). So it's all going to be one happy family gathering for Christmas.
Now you understand that Santa is getting ready for Christmas and has a pregnant wife and his in-laws and out-laws coming to the house for Christmas. So what else could go wrong?
Simple Jack Frost (Martin Short) has decided that he wants to be Santa and get rid of The Calvin's. You see in the hall of globes there is one special globe that if you hold it and wish for something it will come true and Jack knows about it. He just has to find out how to get into the hall.
Jack feels that if he can shake up the North Pole and make it as bad as he can that he can get Santa to hold the globe and maybe utter the words I don' t want to be Santa that everything will revert back to before Scott became Santa. Jack gets involved in the workings of the place and has Santa hood winked into believing that he is actually trying to help rather than destroy everything.
Santa does get to that point and in a moment of weakness he utters those dreadful words. Now you must watch the end of the movie to see if Jack can take over control of the North Pole and become Santa.
Director Michael Lembeck works this story line very well. You see there is so much commotion with the in-laws and family up there and with Christmas coming that there is a very large story line going on. It's not a problem it makes it become one big load of fun to watch. Happy Holidays.