Using the cadaver of a John Doe, Ducky demonstrates an autopsy to a group of military officers; however, Ducky soon says that the death resulted from murder. Gibbs and company investigate; while making inquiries they meet a woman FBI agent, Courtney, who names the victim, Marvin, and says that he worked for the FBI. Courtney relates that Marvin was a client of a service for the eradication of personal history and the creation of a new one, and that the FBI is more interested in the provider than in Marvin; Fornell explains serious implications. A big bunch of federal agents find what appears to be a three-in-one. The NCIS gets one bad guy, and the FBI gets another one.