Following the sudden and mysterious death of their father, a brother and sister return home to their sprawling New Orleans estate and encounter their unhinged stepmother, who will stop at nothing to gain control of their inheritance.。Based on real events, the story follows a father and son (Offerman and Tremblay) who identify as Sovereign Citizens, a group of anti-government extremists, as they venture across the country and find themselves in a standoff with a chief of police (Dennis Quaid) that sets off an intense manhunt with tragic consequences.。