Scott is distressed to learn that his ex-wife and her husband have informed his son, Charlie, that there is no Santa Claus. While a sullen Charlie visits his dad on Christmas Eve, a noise on the roof brings them outside. It turns out that there is a Santa after all, and Scott has just accidentally killed him. Because of "the Santa clause," Scott inherits the job of Santa. As the next year passes, Scott rapidly gains weight, grows a white beard and...

After eight good years as Santa Claus, things start to get complicated for Scott Calvin when his son ends up on the "naughty" list, and he finds out that according to the rules Santa must be married.

Kindergarten cop: A veteran detective is forced to go undercover as a kindergarten teacher in order to trap an elusive criminal. Problem child: A good-natured man and his social-climbing wife adopt a seven-year-old boy to brighten their lives. But Junior soon turns ordinary events into comic nightmares. Kicking & screaming: Family man Phil Weston, a lifelong victim of his father's competitive nature, takes on the coaching duties of a kids' soccer...