Chipmunk singing sensations Alvin, Simon, and Theodore are back for an encore in this hilarious 'squeakquel' packed with more action and more nutty fun for the whole family. When a concert mishap lands Dave in the hospital, the Chipmunks take a break from superstardom and enroll in school to fit in with kids their age. But they soon face some stiff competition when they meet the Chipettes, a beautiful, talented trio of chipmunks.

On an island populated entirely--or almost entirely--by happy, flightless birds, Red, a bird with a temper problem, speedy Chuck, and the volatile Bomb have always been outsiders. But when the island is visited by mysterious green piggies, it's up to these unlikely outcasts to figure out what the pigs are up to.