As of now, the American public has access to a national treasure: 'Alvin and the Chipmunks: Chipwrecked.' The rambunctious rodents are at it again in another madcap musical adventure; this time Alvin, Simon and Theodore and their Chipette counterparts Brittany, Jeanette and Eleanor, go on a cruise ship vacation with the always-irritable Dave Seville. But Alvin's hijinks result in all six of the cute and the cuddly chipmunks getting stranded on a deserted tropical island. They'll have to learn to work together to get back home ... and bust out some new songs along the way.