A group of friends were on their holiday on a private yacht. Unfortunately, the yacht hit the reef at the middle of the sea, bringing everyone into the sea. What's more, a shark with genetic mutation attacked them. The shark was huge, with bad temper and mania. The group drifted on the sea, in danger of the attacks from the shark and even more challenges.

In Southeast Asia, with its gorgeous scenery, a cruiser with many tourists on it enters into mystical waters, in which there is a huge mutant. People mysteriously die one after another. The "killer" in the dark and the mysterious person among the tourists make the cruiser "an execution machine." Survivors who flee to a weird uninhabited island meet a fiercer mutant, and start a journey of survival.