Mason Parker, along with the rest of the Sweetboro residents, thought the murderous sea creatures known as sliggers had all been destroyed. But a fateful boating trip to Wrecker Island will prove them wrong. After a boat accident strands Mason, Eaver, and three of their friends on the island, the group explores their surroundings. They discover a wartime secret that led to the creation of the monsters, locate an enormous sligger nest, and then must rely on their strengths and their wits to stay alive while they are hunted on SLIGGER ISLAND.
