Purity

April 9, 2013

77.0%

NCIS: Los Angeles - S4 - E20

When cyanide in a communal water jug lethally poisons a 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.

Tweet! Telegram Facebook Pinterest

NCIS: Los Angeles: Season 4 - 24 Episode s

4x1 - Endgame
September 25, 2012
Following Callen’s public shooting of the Chameleon, all is not well with the NCIS: LA team, as Callen is placed on suspension and Hetty adjusts to retired life.
4x2 - The Recruit
October 2, 2012
A drone strike on a bomb-making compound in Afghanistan reveals the body of a recently retired Marine, leaving the NCIS: LA team to investigate why the Marine returned to Afghanistan and whether or not he betrayed the country he fought for.
4x3 - The Fifth Man
October 9, 2012
The NCIS: LA team investigate a compromised intel operation after four people connected to the classified project are killed at a diner explosion. As Deeks and Kensi are on the trail of those involved, they learn that a wayward teenage girl might be related and Kensi can’t help but be empathetic to her situation.
4x4 - Dead Body Politic
October 23, 2012
The NCIS: LA team investigates the tragic death of a U.S. senatorial candidate’s staffer who is run over crossing the street. The high-profile case becomes a matter of national security as the agents must determine whether it is an isolated tragic incident or a politically connected plot that might put others in danger.
4x5 - Out of the Past (1)
October 30, 2012
When a CIA agent who worked with Sam Hanna over 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.
4x6 - Rude Awakenings (2)
November 13, 2012
The NCIS: LA team continues their investigation behind the death 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.
4x7 - Skin Deep
November 20, 2012
The NCIS: LA team heads to the beach to question 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.
4x8 - Collateral Damage
November 27, 2012
The NCIS: LA team questions the motive behind the murder of a retired CIA agent turned millionaire and in the process also questions what Hetty knows about the case.
4x9 - The Gold Standard
December 11, 2012
The NCIS: Los Angeles team investigates the strange and brazen 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.
4x10 - Free Ride
December 18, 2012
Callen, Sam, Kensi and Deeks spend Christmas aboard an aircraft 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.
4x11 - Drive
January 8, 2013
A former defendant of Deeks is targeted for discovering information 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.
4x12 - Paper Soldiers
January 15, 2013
A distraught widow is suspicious of the circumstances surrounding her 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.
4x13 - The Chosen One
January 29, 2013
Callen goes undercover to infiltrate a network of Chechen terrorists who are recruiting foreign fighters to join their cause and planning their next attack in the U.S.
4x14 - Kill House
February 5, 2013
Callen, Sam, Kensi and Deeks go undercover as an elite tactical force in order to investigate an ambush tied to a cartel kingpin with terrorist connections.
4x15 - History
February 19, 2013
An NCIS: LA investigation leads the team to question a lone survivor of a former terrorist organization, while Kensi and Deeks follow the trail into the woods
4x16 - Lohkay
February 26, 2013
Callen is concerned that Sam might be too invested after he takes on a missing persons case for an Afghani elder who helped him years ago when he was wounded on a mission.
4x17 - Wanted
March 5, 2013
Sam fears for his family’s safety when his wife is called to resume a former CIA cover after a case suggests ties to the infamous Sidorov and his stolen nuke.
4x18 - Red (1)
March 19, 2013
Callen and Sam fly to Idaho and join forces with 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.
4x19 - Red (2)
March 26, 2013
While the LA team chases leads digitally and locally, the NCIS: Red team travels in their mobile trucks, nicknamed "Laverne and Shirley", in a race to track down a cunning terrorist before he disappears.
4x20 - Purity
April 9, 2013
When cyanide in a communal water jug lethally poisons a 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.
4x21 - Resurrection
April 23, 2013
A body is stolen after a special task force successfully takes down an infamous cartel boss, leaving the NCIS: LA team to investigate the leak and track down the missing body.
4x22 - Raven & the Swans
April 30, 2013
Callen questions Hetty’s motivations when a bizarre case involving a mysterious woman is revealed to be an undercover agent from her past.
4x23 - Parley
May 7, 2013
Deeks goes undercover to obtain information about an infamous arms 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.
4x24 - Descent
May 14, 2013
A nuclear explosion in the Pacific reignites the search for 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.

4x1 - Endgame

4x2 - The Recruit

4x3 - The Fifth Man

4x4 - Dead Body Politic

4x5 - Out of the Past (1)

4x6 - Rude Awakenings (2)

4x7 - Skin Deep

4x8 - Collateral Damage

4x9 - The Gold Standard

4x10 - Free Ride

4x11 - Drive

4x12 - Paper Soldiers

4x13 - The Chosen One

4x14 - Kill House

4x15 - History

4x16 - Lohkay

4x17 - Wanted

4x18 - Red (1)

4x19 - Red (2)

4x20 - Purity

4x21 - Resurrection

4x22 - Raven & the Swans

4x23 - Parley

4x24 - Descent

S0: Specials

S1: Season 1

S2: Season 2

S3: Season 3

S4: Season 4

S5: Season 5

S6: Season 6

S7: Season 7

S8: Season 8

S9: Season 9

S10: Season 10

S11: Season 11

S12: Season 12

S13: Season 13

S14: Season 14