[Machine Translation] A beautiful resort island in the South Seas, a veritable paradise. One day, however, a dead diver is found with his bones, not to mention his flesh, ripped off. Anne, a diving instructor, becomes suspicious and sets out to investigate, but she discovers a horrifying truth... It turns out to be the work of a combat killer fish that was secretly developed by the military during the Vietnam War! And with the arrival of the annual festival, the swarms of killer fish also attack the island. Is there any way to save the paradise that has turned into a hell?