Nineteen year old pioneer woman Marty has recently married. She goes west with her husband Clem, hoping to start a new life. But Clem unexpectedly dies, and Marty finds herself alone, two months pregnant. Widower Clark offers her a marriage of convenience: she needs food and money, and he needs someone to take care of his daughter Missie. She accepts his proposal as a temporary solution.
A group of friends including Brady Turner, Claire and Duncan McKay go out on a boat trip on a lake in Southern California, but their joyful weekend turns into horror, when a giant killer crocodile searching for its stolen eggs, picks off anyone who gets in its way. Can they all escape in one piece or will they slowly and painfully fall to the mammoth reptile.