On Amity Island, Martin Brody, famous for his role as Police Chief and his heroism during the previous events, has recently died from a heart attack. His wife, Ellen, attributes it to the fear of sharks. She now lives with Brody's younger son, Sean, and his fiancée, Tiffany. Sean now works as a police deputy, and is dispatched to clear a log from a buoy a few days before Christmas. A great white shark appears and kills him, sinking his boat in the process.