Just as troubled medium Roman Mercer prepares to leave the small town of Port Moore, an earthquake strikes the Alaskan island and awakens a supernatural force bent on destruction.

Roguish smuggler Billy sails into Port Moore to find his hometown disturbed by recent events, and as he moves to distribute his latest shipment, his beloved boat and only escape is overtaken by a presence of his past.

As churchgoers flourish in numbers, Reverend Dan soothes the anxieties of the townspeople. When the hauntings escalate to a possession of a young boy, Dan wrestles with the thought of performing an unsanctioned exorcism.

The town leans on skeptical and steadfast handyman Doug after Port Moore's social structure begins to collapse, but when Doug's dead daughter persuades Roman to deliver a message, Doug's well being rapidly deteriorates.