Fred Claus and Santa Claus have been estranged brothers for many years. Now Fred must reconcile his differences with his brother whom he believes overshadows him. When an efficiency expert assesses the workings at the North Pole and threatens to shut Santa down, Fred must help his brother to save Christmas.

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.

Now that Santa and Mrs. Claus have the North Pole running smoothly, the Counsel of Legendary Figures has called an emergency meeting on Christmas Eve! The evil Jack Frost has been making trouble, looking to take over the holiday! So he launches a plan to sabotage the toy factory and compel Scott to invoke the little-known Escape Clause...

E.B., the Easter Bunny's teenage son, heads to Hollywood, determined to become a drummer in a rock 'n' roll band. In L.A., he's taken in by Fred after the out-of-work slacker hits E.B. with his car.

Each Christmas, Santa and his vast army of highly trained elves produce gifts and distribute them around the world in one night. However, when one of 600 million children to receive a gift from Santa on Christmas Eve is missed, it is deemed ‘acceptable’ to all but one—Arthur. Arthur Claus is Santa’s misfit son who executes an unauthori...