Helena’s (Daisy Ridley) seemingly normal life hides a grim truth: her estranged father, Jacob (Ben Mendelsohn), is the infamous Swamp King, who has kept her and her mother captive in the wild for years of days. When Jacob escapes from prison, Helena will have to face the past. Knowing that he will hunt her down, the woman must find the strength to face her demons and defeat the man who taught her everything she knows about surviving in the wilderness.