NCIS: Los Angeles is an American action television series combining elements of the military drama and police procedural genres, which premiered on the CBS network on September 22, 2009, and stars Chris O'Donnell and LL Cool J. The series follows the exploits of the Los Angeles-based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.
NCIS: Los Angeles is the first spin-off of the successful series NCIS. On March 25, 2016, CBS renewed the series for an eighth season, which premiered on September 25, 2016.
NCIS: Los Angeles follows Special Agent G. Callen (Chris O'Donnell), a "legend" assigned to the fictional Naval Criminal Investigative Service branch known as the Office of Special Projects (OSP). Callen leads an elite team of undercover operatives as they battle enemies both foreign and domestic under the watchful eye of Operational Manager Henrietta 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, and technical analyst Eric Beale (Barrett Foa).