A supernatural psychological thriller centered around the story of William Brook (Colten Wilke), a reclusive young fisherman who goes looking for his missing sister in the rugged Pacific Northwest. When the body of William's sister Sarah's roommate is discovered in the forest, Will works with newly reinstated Detective Ivy Seymour (Natalie Brown) to investigate the deaths of over 30 local women from a nearby town. As the likelihood of finding his sister alive diminishes and his troubled personal history becomes apparent, Will must confront his past, make amends with the First Nations people and finally face his demons if he hopes to solve the case and stop his recurring nightmare of the Thunderbird.