Scott Calvin is a divorced father whose strained relationship with his son, Charlie, begins to mend only after a bizarre twist of fate transforms him into the new Santa. When the current Mr. Clause falls off the roof on Christmas Eve, Scott dons Santa’s suit, and he and his son are whisked off to the North Pole. There he meets Bernard, the head elf, who tells him about the Clause, a contract stating that whoever puts on the Santa suit must also take on all the responsibilities that go with the position. Scott isn’t too thrilled about his sudden career change. Charlie, however, is overjoyed.