ALVIN, SIMON, AND THEODORE are ready for Christmas vacation! But when Alvin learns of a very sick boy who needs his help, mischief and musical mayhem take over. The Chipmunks are going to need more than a song to get them out of this holly jolly mess! Celebrate Christmas with "The Chipmunk Song" and four other favorite Chipmunk hits in this special storybook and CD package!