Alvin and the Chipmunks have taken the world by storm with their three-part harmonies and killer moves. But as regular middle school students, Alvin, Simon, and Theodore haven't been quite so lucky. With a school full of bullies and The Chipettes stealing their spotlight, things look pretty bleak for Alvin and the gang-until a musical competition gives them the chance to get back on top. The Battle of the Bands is on!