The crime drama begins Series 7 with Callen going off grid in search of information regarding Arkady, leaving Sam and the rest of the team in the dark. Hetty wants the operation shut down, but the team are able to get Callen back on track. Later in the season; Kensi and Deeks must go undercover as a model's assistant and chauffeur; Sam searches for his former partner, who disappeared in an explosion; and Washington NCIS Special Agent Anthony DiNozzo teams up with the LA NCIS team to track down a prisoner that escapes from a flight