List of NCIS: Los Angeles episodes

NCIS: Los Angeles is an American television series that premiered on CBS on September 22, 2009. The series is set in Los Angeles, California and follows the stories of the members of the Office of Special Projects, an undercover division of the Naval Criminal Investigative Service (NCIS). The show and its characters were introduced in a two-part episode during the sixth season of the television series NCIS on April 28 and May 5, 2009.

On March 31, 2022, NCIS: Los Angeles was renewed for a fourteenth season. On January 20, 2023, it was announced that the fourteenth season would be its last.

Introductory episodes
NCIS: Los Angeles and its characters were introduced during the sixth-season episodes of NCIS titled "Legend (Part I)" and "Legend (Part II)". These episodes served as a backdoor pilot for the series.

Season 1 (2009–10)

 * This was the first season to feature 24 episodes.

Season 9 (2017–18)

 * Nia Long (Shay Mosley) joined the main cast.

Season 10 (2018–19)

 * Nia Long (Shay Mosley) departed the show in episode 6, "Asesinos".
 * This is the final season to have 24 episodes.

Season 11 (2019–20)

 * Medalion Rahimi (Fatima Namazi) had a recurring arc starting with the season premiere, "Let Fate Decide", and was later promoted to the main cast in the sixteenth episode, "Alsiyadun".

Season 12 (2020–21)

 * Caleb Castille (Devin Roundtree) was promoted to the main cast as of this season.
 * Barrett Foa (Eric Beale) and Renée Felice Smith (Nell Jones) departed the series in the season finale "A Tale of Two Igors".