Get ready to root for the little guy in this big blue adventure under the sea! When Pi, an ordinary fish from Boston, arrives at the exotic reef to live with his Aunt Pearl, he meets and falls for Cordelia, the fish of his dreams. The problem is that Troy, the meanest shark in the ocean, not only keeps the reef community in constant fear of becoming shark bait, but also his eye on Cordelia, and doesn't want any competition! Now, Pi must band together with his new group of friends in order to outwit Troy and his henchmen, save the reef and win the heart of Cordelia.