On vacation aboard a luxury cruise ship, Alvin, Simon, Theodore and the Chipettes are up to their usual antics, turning the ship into their personal playground, until they become ‘chipwrecked’ on a desert island. As Dave Seville frantically searches for his AWOL charges, the ‘Munks and Chipettes do what they do best – sing, dance and wreak havoc. But they’re in for a surprise when they embark on an island adventure with their new friend – a castaway who’s more than a match for Alvin and the Chipmunks.
Taking place long before he hooked up with Shrek, we’re introduced to this kitty at an orphanage in San Ricardo where he and fellow orphan Humpty Alexander Dumpty (Zach Galifianakis) dream of finding some magic beans to grow into a beanstalk that stretches into a giant’s castle in the clouds where they hope to sneak in and steal a goose that lays golden eggs. But the dream quickly dies, the youths drift apart, and Puss’ notorious reputation begins after he rescues a woman from a charging bull. Puss and Humpty’s divergent paths trigger their darker sides with Puss becoming a near-mythic outlaw and lover. But Humpty still nurses a plan to steal those magic beans, and Puss and new acquaintance Kitty Softpaws, a feline with no claws, but plenty of brains join in the search, only to be thwarted by the evil Jack (Billy Bob Thornton) and Jill (Amy Sedaris) who also have plans for the legendary legumes