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.

An arrival from Lambda headquarters gives the town hope for the first time in weeks as they distribute supplies and promise to get everyone off the island; the eccentric young CEO Daphne Vikander takes great interest in Roman.

Landis and Jimmy try to make sense of the museum artifact; Karla is with ghost-child and it's growing fast; Abigail's physical condition deteriorates, prompting Marilyn to finally realize that whatever is inside her daughter isn't normal.

While Daphne gathers the power she needs to launch her accelerator test, civil unrest breaks out in town when Paolo refuses to open the bar, and a mob pursues Roman, Landis, Jimmy and the McGrath-Dufresnes.

While the ghosts build a resistance against Roman, Port Moore survivors draw straws in preparation for their final battle, a quest to connect the two halves of the artifact in the ghost realm.