The year is 1919, and it is a time of great civil unrest in Ireland. Resident magistrate, John C. Milling, is well on his way to a bright and favourable future in law enforcement, but is heinously murdered in front of his wife and child. Detective Inspector Scott from the Royal Irish Constabulary is commissioned to solve the murder. Two local brothers suspected in aiding the assassination are arrested, but a skirmish at the police station results in their untimely deaths and that of a police constable. DI Scott is summoned to Castlebar by his superior to explain the previous day's events and he's instructed to bring his investigation to a hasty end, but he suspects a conspiracy. Defying his superior, he and his constable travel to Dublin in search of the primary suspect, but get drawn into the troubles of Bloody Sunday. They narrowly escape back to Westport, and with further death on the horizon, DI Scott tracks down his suspect in a lethal vis-a-vis confrontation.