NCIS: Los Angeles - Season 4

When a CIA agent who worked with Sam Hanna over... More eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle.

The NCIS: LA team continues their investigation behind the death... More of a CIA agent that leads to a dangerous ring of Russian super agents. In a race against time, Hanna risks having a secret exposed.

The NCIS: LA team heads to the beach to question... More the possible link between a surfer, an Internet video and a dead Naval tech scientist. Meanwhile, as Callen and Hanna investigate the victim’s intelligence connections, Deeks and Kensi go undercover to catch their suspects and some waves.

The NCIS: LA team questions the motive behind the murder... More of a retired CIA agent turned millionaire and in the process also questions what Hetty knows about the case.

The NCIS: Los Angeles team investigates the strange and brazen... More heist executed by gunmen in costumes that could directly impact the U.S. economy. Meanwhile, as Deeks testifies on a case, Granger insists on partnering up with a very reluctant Kensi.

Callen, Sam, Kensi and Deeks spend Christmas aboard an aircraft... More carrier investigating the death of a fellow NCIS special agent. Meanwhile, Nell and Eric make the most of the holidays back at headquarters and Hetty takes a trip.

A former defendant of Deeks is targeted for discovering information... More that could dismantle a lucrative car shipping operation with links to a global terrorist ring. Meanwhile, the NCIS: LA team tackles the large-scale stolen car operation from the inside when Kensi goes undercover in an auto body shop.

A distraught widow is suspicious of the circumstances surrounding her... More Marine husband’s last battle and Sam and Callen help to determine if there has been a cover-up. Meanwhile, Hetty summons Operational Psychologist Nate Getz to be her “pawn” and the rest of the NCIS: LA sense another evaluation on the horizon.

Callen goes undercover to infiltrate a network of Chechen terrorists... More who are recruiting foreign fighters to join their cause and planning their next attack in the U.S.

Callen, Sam, Kensi and Deeks go undercover as an elite... More tactical force in order to investigate an ambush tied to a cartel kingpin with terrorist connections.

An NCIS: LA investigation leads the team to question a... More lone survivor of a former terrorist organization, while Kensi and Deeks follow the trail into the woods

Callen is concerned that Sam might be too invested after... More he takes on a missing persons case for an Afghani elder who helped him years ago when he was wounded on a mission.

Sam fears for his family’s safety when his wife is... More called to resume a former CIA cover after a case suggests ties to the infamous Sidorov and his stolen nuke.

Callen and Sam fly to Idaho and join forces with... More NCIS: Red, a mobile team of agents who live together and investigate crimes in various locations, when a murder weapon found there matches one used in a national security case in Los Angeles.

While the LA team chases leads digitally and locally, the... More NCIS: Red team travels in their mobile trucks, nicknamed "Laverne and Shirley", in a race to track down a cunning terrorist before he disappears.

When cyanide in a communal water jug lethally poisons a... More lieutenant and leaves a Navy pilot in serious condition, the NCIS: LA team investigates whether this is an isolated incident or an early test for large-scale water contamination.

A body is stolen after a special task force successfully... More takes down an infamous cartel boss, leaving the NCIS: LA team to investigate the leak and track down the missing body.

Callen questions Hetty’s motivations when a bizarre case involving a... More mysterious woman is revealed to be an undercover agent from her past.

Deeks goes undercover to obtain information about an infamous arms... More dealer looking to get back in the business, but the woman he befriends leads the operation in a dangerous directon. Meanwhile, Kensi confronts new emotions as she runs surveillance on Deeks and his female source.

A nuclear explosion in the Pacific reignites the search for... More stolen nuclear weapons and prompts Hetty to shuffle the NCIS: LA partnerships, sending Callen and Kensi overseas and leaving Sam and Deeks teamed up state side.