When Alvin visits a museum and sees an exhibit of medieval costumes, he is suddenly drawn into an imaginary adventure where he gets the opportunity to prove his skill as a knight in a medieval land of kings and castles.
Young Alvin sails off with a band of pirates, who seem to think that he is their captain, and they all engage in a food fight with the crew of another pirate ship.
When Santa finds it impossible to control his mischievous elves and stop them from ruining his workshop, he brings Alvin to the North Pole to solve the problem.
