In the great nation of Emperor Penguins; deep in Antarctica; you're nobody unless you can sing - which is unfortunate for Mumble (ELIJAH WOOD); who is the worst singer in the world. He is born dancing to his own tune...tap dancing. As fate would have it; his one friend; Gloria (BRITTANY MURPHY); happens to be the best singer around. Mumble and Gloria have a connection from the moment they hatch; but she struggles with his strange "hippity- hoppity" ways. Away from home for the first time; Mumble meets a posse of decidedly un-Emperor-like penguins - the Adelie Amigos. Led by Ramon (ROBIN WILLIAMS); the Adelies instantly embrace Mumble's cool dance moves and invite him to party with them. In Adelie Land; Mumble seeks the counsel of Lovelace the Guru (also voiced by ROBIN WILLIAMS); a crazy-feathered Rockhopper penguin who will answer any of life's questions for the price of a pebble. Together with Lovelace and the Amigos; Mumble sets out across vast landscapes and; after some epic encounters; proves that by being true to yourself; you can make all the difference in the world.