Research scientist Landis Barker self-experiments to quantify the haunting of a Lambda Technologies branch in Port Moore after a particle accelerator test goes wrong and the entire building goes into lockdown.

A power outage sends Port Moore into a tailspin and somehow makes the ghosts stronger, prompting Roman, Jimmy, Landis and Doug to trek up to the dam to get the power back, but a long-buried town secret threatens to tear the group apart.

With his body in critical condition, Jimmy's spirit becomes trapped in the nightmarish ghost realm; Roman pursues Dan, looking for answers about his mother's death.