When the Solomons trade in the craziness of big-city life for the quiet of a North Dakota farm, little do they expect the nightmare that follows. Soon after arriving, teenage Jess (Kristen Stewart) and her younger brother see terrifying apparitions and endure attacks from a supernatural source. Jess must warn her disbelieving family before it is too late to save them.

The family man farmer John Rollins is stressed with his financial situation: the crows and the lack of irrigation are destroying his crop of corn; the bank is near closure of his mortgage; he does not have credit to fix the water pump or to buy seeds; and his marriage is in crisis and his wife Mary is giving too much attention to her friend Tommy. When John accidentally discovers a hidden compartment in the barn, he finds a creepy scarecrow but his son Michael makes him promise to destroy it. However, his neighbor Jude Weatherby visits him, gives a six-pack of beer to the abstemious John and convinces him to put the scarecrow in the cornfield. Out of the blue, the life of John changes: the crows die; the pump works again irrigating the land; and the banker responsible for the closure has an accident and dies. However, he feels that his land is possessed by something evil that is threatening his beloved family.