When Dan (James Tupper) uproots his family to the idyllic town of Stull to take up his new role as pastor, he is greeted with open arms by the American country charm of his new congregation. However every town has its secrets, and the family is twisted into a tale of betrayal and evil beyond their worst nightmares. Stull, Kansas is known in legend to be one of the seven gateways to Hell, and every year a ritual human sacrifice must take place in order to protect the town from the plague of a dark supernatural force. A force hell-bent on terrorising their existence.