In the small, isolated town of Greenfield, something ancient stirs beneath the surface, feeding off the land and its people. When two FBI agents, Caldwell and Ryder, arrive to investigate a series of mysterious disappearances, they uncover a dark and twisted history of the town—a history rooted in an ancient ley line, an energy source that has been feeding off the very life of Greenfield for generations. As the land begins to awaken, the agents must race against time to sever the connection and destroy the force that controls the town before it consumes them all. With danger lurking at every turn and the earth itself fighting back, they discover that the true horror of Greenfield is far older and more powerful than they ever imagined.