When Samantha LeBon hatches a scheme to spend a romantic Christmas with her new employee -- the unsuspecting, blithesome James -- his wife, their kids and their two dogs, Rocks and Daphne, must rescue him before he makes a terrible mistake.
Scott Calvin is an ordinary man, who accidentally causes Santa Claus to fall from his roof on Christmas Eve and is knocked unconscious. When he and his young son finish Santa's trip and deliveries, they go to the North Pole, where Scott learns he must become the new Santa and convince those he loves that he is indeed, Father Christmas.