Scott Calvin has been a humble Santa Claus for nearly ten years, but it might come to an end if he doesn't find a Mrs. Claus.
A bad deed on the part of a tough minor-league hockey player results in an unusual sentence: He must serve one week as a real-life tooth fairy.
Santa, aka Scott Calvin, is faced with double-duty: how to keep his new family happy, and how to stop Jack Frost from taking over Christmas.