A detective named Meredith Hendricks, the best cop in her quiet town on Lake Tahoe, is investigating a series of vicious attacks on swimmers and land-lovers alike that have rocked the community. These attacks are carried out by a group of exotic and aggressive eating machines that have invaded the lake, bringing a whole new meaning to the phrase 'don't go in the water.' As the body count rises and panic spreads, Meredith and her team discover that they must face the terrifying creatures lurking beneath the surface of the lake, putting their own lives at risk in order to protect others from the deadly threat that lurks in Shark Lake.