When 7 college friends pack their swim suits for a weekend of fun-in-the-sun activities at their friend Sara's lake house, they think it will be the perfect vacation. But the tables immediately turn when the lead football star, Malik, gets his arm ripped off during a water skiing accident. While the friends are to believe his wound was a freak accident, they soon come to discover that there was a primal attack involving a shark. Now while they think that one shark is no problem, they soon come to the realization that 15 species of sharks are lurking in the water, and with no form of boat or transportation, and no signals for phone's, the group of seven now face a fate they would never imagine. Being fed to these sharks by crooks for real life footage on an Internet website.

Samantha Caine, suburban homemaker, is the ideal mom to her 8 year old daughter Caitlin. She lives in Honesdale, PA, has a job teaching school and makes the best Rice Krispie treats in town. But when she receives a bump on her head, she begins to remember small parts of her previous life as a lethal, top-secret agent. Her old chums in the Chapter are now out to kill her so she enlists the help of a cheap detective named Mitch. As Samantha remembers more and more of her previous life, she becomes deadlier and more resourceful. Both Mitch and Charly proceed to do the killing thing, the bleeding thing and the shooting thing.