Troubled medium Roman prepares to leave the small Alaskan town of Port Moore. However, his plans are waylayed by an earthquake that awakens supernatural forces.
Billy returns to Port Moore to find his home disturbed by recent events. As he attempts to distributed his illicit goods, he finds his boat is overtaken by a presence.
Pragmatic research scientist Landis Barker self-experiments to quantify the haunting of a Lambda Technologies branch in Port Moore after a particle accelerator test goes horribly wrong and the entire building goes into lockdown.
As churchgoers flourish in numbers, Reverend Dan soothes the anxieties of the townspeople. But 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 sceptical 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, sending him over the edge.
As Val organizes a civil defense force to protect the town, her twin daughter Abigail goes missing. Billy leads the charge to find the young girl, employing Roman's medium skills and anyone else who's willing to set foot in the treacherous forest on the outskirts of town.
Port Moore goes into a tailspin during another power outage where the ghosts seem to grow stronger. Roman leads a team to the dam to restore power but unearth a long buried secret that tears the team apart.
Billy's spirit becomes trapped in the nightmarish ghost realm when his physical body is in critical condition. Roman stalks Dan for info on his mother's death.
The town is given hope after a new arrival at Lambda headquarters. New supplies are distributed and an escape from the island promised. Lambda's eccentric CEO takes an interest in Roman.
Lambda's attempts to use their confiscated pod lead to disaster as they bring back a grotesque Norm from the ghost vessel and he unleashes havoc.
Karla's ghost-child is gestating quickly. Abigail's physical condition starts to deteriorate, making Marilyn wonder if what's inside her daughter isn't normal.
Daphne gathers power to re-launch the accelerator. Paulo refuses to open the bar causing civil unrest. Roman, Landis, Jimmy and the McGrath-Dufresnes are pursued by a mob.
The ghosts are building a resistance to Roman. The plan to open death's door to expel the ghosts means that some of the town's survivors will die.
