As the NCIS team searches for Gibbs after wreckage from his boat is discovered, they find out he was tracking a serial killer with journalist Marcie Warren, who wrote an exposé on him.
Gordon visits Island Park, ID, to help rescue the stunning Angler's Lodge. The owner, who built the lodge with his own hands, has lost his passion after a family tragedy and it has almost cost him his business.
Still picking up the pieces after the death of Denis and the cover up that followed, Val Ahern’s world is rocked once again when a stranger turns up on her doorstep. The stranger introduces himself as Finn - Denis’ estranged son, and his existence is an unwelcome surprise for the family.