chunk: When local fishermen catch a large tiger shark, the mayor proclaims the beaches safe. Hooper disputes it being the same predator, confirming this after no human remains are found inside it. Hooper and Brody find a half-sunken boat while searching the night waters in Hooper's boat. Hooper examines it underwater and retrieves a sizable great white shark's tooth embedded in the hull. He drops it after finding a partial corpse. Vaughn discounts Brody and Hooper's claims that a huge great white shark is responsible and refuses to close the beaches, allowing only added safety precautions. On the Fourth of July weekend, tourists pack the beaches. Following a juvenile prank, the real shark enters a nearby estuary, killing a boater and causing Brody's oldest son Michael to go into temporary shock. Brody finally convinces a devastated Vaughn to hire Quint.