Life is good in the Central Park Zoo for four lifelong friends. Taking the lead in this wacky pack is Alex the Lion-the zoo's pride (pardon the pun) and joy. His sidekick, Marty the Zebra, is a dreamer who always has his striped head in the clouds. Their buddy Melman the Giraffe is a hypochondriac. (Hey, you'd be afraid of getting a sore throat if yours was five feet long, too.) Last but not least is Gloria--the hippest hippo who knows how to throw her weight around. When a gang of scheming penguins inspires a daring zoo break, this funky foursome trades their comfortable caged lifestyle for the adventure of a lifetime. Will they, and their friendships, have what it takes to survive in the wild?