Mind Games

Death row prisoner Kyle Boone is a serial killer whom Gibbs arrested ten years ago. Having been placed on Death Row and due to be executed in a few days time for killing several young women, carving a mark on their backs and taking their tongues as his trophies, he insists that he will disclose the location of the missing bodies of his murder victims to Gibbs alone, forcing the reluctant team leader to meet with him due to SECNAV personally ordering him to do so. When Abby and McGee locate the place where the victims had been murdered, the team, assisted by Agent Cassidy, finds that the latest four victims in Boone's scrapbook had been killed in the last three years, meaning Boone has an accomplice who has been carrying on his work. But the investigation turns serious when Agent Cassidy goes missing, having been kidnapped, the team is forced into a desperate race against time to prevent her from becoming victim number five of the copycat killer.