A lowly utility worker is called to the future by a mysterious radio signal, he must leave his dying wife to embark on a journey that will force him to face his deepest fears in an attempt to change the fabric of reality and save humankind from its greatest environmental crisis yet.

Playing around while aboard a cruise ship, the Chipmunks and Chipettes accidentally go overboard and end up marooned in a tropical paradise. They discover their new turf is not as deserted as it seems.