Eccentric oceanographer Steve Zissou (Murray) and his motley crew - Team Zissou - find themselves in troubled waters when they attempt to track down the mysterious "jaguar shark" that ate his partner while filming a documentary of their latest adventure. Zissou must also contend with a beautiful journalist (Blanchett) assigned to write a profile, and a new member of the team who might possibly be his long-lost son (Wilson).