NCIS: Los Angeles Episode Guide

Season 1 (2009 - 2010)

Premeire: Identity

This is the series premiere of NCIS: Los Angeles. In it, Callen returns from a shooting.

Finale: Callen, G

Callen seeks to uncover the keys to a case, and unlock secrets of his past, on the first season finale of NCIS: Los Angeles.

Season 2 (2010 - 2011)

Premeire: Human Traffic

The second season of NCIS: Los Angeles kicks off with a two-hour premiere and another missing agent. This time it's Det. Deeks, who's gone deep cover ... probably a little too deep.

Finale: Familia

Hetty's sudden resignation prompts Callen and NCIS the team,to investigate the reason why she would disappear in the hopes of tracking her down.

Season 3 (2011 - 2012)

Premeire: Lange, H.

The team travels to Romania to search for Hetty; Callen discovers new information about his past, on the third season premiere of NCIS: LA.

Finale: Sans Voir

The NCIS: Los Angeles team goes up against the Chameleon in the show's season finale.

Season 4 (2012 - 2013)

Premeire: Endgame

Following Callen's public shooting of the Chameleon, he is placed on suspension while Hetty adjusts to retired life on the Season 4 finale.

Finale: Descent

A devastating event ignites the rush to find stolen nuclear weapons and has Hetty making changes in the usual partnerships on the season 4 finale of NCIS: Los Angeles.