Alex the Lion, Marty the Zebra, Melman the Giraffe, and Gloria the Hippopotamus set out to return to New York after escaping to Africa. Dependent on the mechanical know-how of the notorious monkeys and penguins, their plan inevitably goes awry and they find themselves stranded in Monte Carlo, where they try to escape Europe from animal control by joining up with a traveling circus by chance. Led by the venerable tiger Vitali, the animal-centered circus has seen better days