خلاصه داستان : داستان پلیسی که به همراه تیم تحقیقاتی به سمت دریاچه ای میروند که در آن یک مشکل زیست محیطی رخ داده است و موجب شده که کوسه هایی در آن حوالی موجب ترس مردم شوند.

Meredith Hendricks happens to be the best cop in her quiet town on Lake Tahoe. When a black-market exotic species dealer named Clint is paroled from prison, something he let loose begins to make its presence known. Swimmers and land-lovers alike begin to become part of the food chain at an unbelievable rate. Meredith and her team discover that they're not just hunting one eating machine, but a whole family of them. Not everyone will make it out alive, but those who do will never forget this summer at Shark Lake.