The day after Christmas is usually a day of rest for Santa and all the Elves at the North Pole. Santa Claus the 10th, forty something now and still heirless, worries about the future with no sign yet of a Santa Claus the 11th to carry on the family business. But when a present for a young Hawaiian girl is found inexplicably un-delivered, Santa and Mrs. Claus need to fly incognito to Hawaii to get the job done. Mrs. Claus is not unhappy with this turn of events.
While she orders room service and reads trashy romance novels by the pool in Waikiki, Santa goes on a wild un-tamed adventure around the islands trying to find Kainani and her family, making friends with the natives, and in the end discovers the true meaning of Christmas.