Now in the present Isaac is the latest victim of the serial killer, a face from his past, who accuses him of betrayal. Reconciling with his family Gabriel finishes with Elaine, having found evidence to suggest Steven Mills' innocence but it is stolen from the police station and when Gabriel eventually finds it it identifies the mass murderer. To understand their motive Gabriel reminds Benton how, twenty-one years earlier, as young policemen, they investigated abuse at the Salvia psychiatric unit, the killer being a patient there now executing revenge on the cruel staff responsible for ruining their life. After receiving a shock revelation from Benton Gabriel must now catch the killer, who has abducted his daughter Hannah.
—don @ minifie-1