David Krumholtz, Aisha Tyler, Tim Allen, Elizabeth Mitchell
Scott Calvin has been Santa Claus for the past eight years, and his loyal elves consider him the best Santa ever. But he's got problems, such as a mysterious weight loss, and then he discovers that his son Charlie has landed on this year's "naughty" list. Desperate to help his son, Scott heads back home, putting a substitute Claus in charge of the North Pole. But when the substitute institutes some strange redefinition of naughty and nice that put Christmas at risk, Scott must return with a new bag of magic to save Christmas.