After stopping at one of his favorite houses on Santa’s delivery list, Scott Calvin realizes that the twenty eight years he’s been on the job has flown by. To make matters worse, his magic begins to falter. Scott trains to get his Santa mojo back, but the following Christmas things only get worse.

Scott learns that, by way of the Secessus clause, he can retire, but he must find a worthy successor before doing so. Torn between wanting to retire and not wanting to leave the North Pole, Scott taps his children as possible candidates. He quickly realizes none of them are interested in the role, but instead want to know more about the world outside the North Pole.

Scott names Cal the next Santa and looks to turn Christmas into a family business.

Cal begins his Santa training, and the elves keep a secret from Scott.