Something's fishy in Lucas Land! Season four of Cartoon Network's Star Wars: The Clone Warskicks off Friday with the first two parts of a gorgeously animated three-episode story set underwater on the planet Mon Calamari. "It's a massive undertaking for us with some of the most ambitious battle sequences we've ever staged in this series," says supervising director Dave Filoni. The plot finds our heroes trying to protect a young prince whose father was assassinated and includes a new badass shark character named Riff Tamsen. "He's a brute force, big-time personality — our homage to Jaws!" Filoni says with a laugh.