影片故事背景一如上集,主要人物布迪警长亦由上集的罗伊·谢德扮演,但是今次出现肆虐艾密迪海滩的大白鲨,却是一条满含恨意,一心前来报“杀夫之仇”的母鲨。Four years after the events of the original "Jaws", the town of Amity suddenly experiences series of mysterious boating accidents and disappearances. Chief of Police, Martin Brody, fears that another shark is out there, but he is ignored by the townsfolk. Unfortunately, he's right. There is another Great White in the sea. And it wants revenge.