A shark bite spreads a virus across the globe, turning the world upside down. Deep below the ocean, a group of researchers race against time to find a cure. Something has infected the lab technicians and it’s a race against time to reach the surface with an antidote before they are all killed by themselves and the sharks lurking inside the test pool and outside in the ocean.
A group of emotionally disturbed teenagers attend a remote retreat to work through their fears of the infamous "Camp Blood Killer". But could this local legend be all too real? And if so who will survive?
A group of hostile aliens crash land at the bottom of the ocean, and via mind control use sharks to terrorize a small town full of secrets in the hopes of completing their invasion mission. It's up to a disparate group of townspeople to sort it out, but in the end it's sharks versus aliens in a surprising climax.
Tommy Heller has been locked away in a mental institution for the past twenty-five years after committing the Camp Murder Massacre. When his careless orderly lets him escape, he returns to the Camp to continue his murder spree.