A devastating earthquake has put the laboratory under the sea level in danger! A devastating earthquake has trapped six researchers stationed on the seabed in a research facility that is about to be submerged. The only way to survive is to walk through the seabed to a distant abandoned drilling platform. During this challenging journey, they soon realized that in addition to relying on simple equipment to overcome the hypoxia crisis, some unprecedented and deadly seabed predators have been awakened, and they are being chased and killed like prey...