NCIS: Los Angeles follows Special Agent G. Callen (Chris O’Donnell), a “legend” assigned to the Office of Special Projects (OSP), a fictitious branch of the Naval Criminal Investigative Service (the real-life NCIS has no offices in Los Angeles). Callen leads an elite team of undercover operatives as they battle enemies both foreign and domestic under the watchful eye of Operational Manager Henrietta “Hetty” Lange (Linda Hunt). The team is composed of Agent Kensi Blye (Daniela Ruah), a hand-to-hand combat specialist and forensic whiz, Sam Hanna (LL Cool J), a former Navy SEAL and G’s partner, technical analyst Eric Bartholomew Beale III (Barrett Foa), and ranking team member Shay Mosley (Nia Long), NCIS Executive Assistant Director for Pacific Operations (EAD-PAC).