Chipmunks ahoy!  While the vacation aboard a luxury cruise liner, Alvin, Simon, Theodor and the Chipettes can’t help rocking the boat with their unique brand of mischief.  But things get really squeaky when the gang winds up stranded on a remote island, and they soon discover their new tropical playground is not as deserted as it seems.

While on vacation in Los Angeles, Walter, the world’s biggest Muppet fan, his brother Gary and friend Mary uncover the diabolical plot of a greedy oil millionaire to destroy the Muppet Theater. Now, the Muppet-loving trio must reunite Kermit, Miss Piggy, Fozzie Bear and their friends to stage the greatest Muppet telethon ever and save their beloved theater.