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.
In comparison to the first Alvin movie, this one is not very good. Quite stupid. Very few humorous parts and the storyline is completely artificial. Sounds negative, but that is how I viewed it. For a child, this may be good, for adults, not at all.