Watch NCIS: Los Angeles Season 12 full episodes online, free and paid options via our partners and affiliates.

Double Agent? - NCIS: Los Angeles Season 12 Episode 11
Watch NCIS: Los Angeles Season 12 Episode 11
"Russia, Russia, Russia"
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On NCIS: Los Angeles Season 12 Episode 11, Callen interrogates a Russian asset from the crashed plane case and ends up accused of being a Russian agent.

Deeks Returns - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 10
"The Frogman's Daughter"
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On NCIS: Los Angeles Season 12 Episode 10, when Sam's daughter, Kam, is kidnapped after leading citywide protests, he will stop at nothing to find her.

A Life Changing Surprise - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 9
"A Fait Accompli"
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On NCIS: Los Angeles Season 12 Episode 9, Callen goes to Anna to ask the ultimate question, and Deeks is learns that Hetty has a life-changing surprise for him.

Counterfeiting Operation - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 8
"Love Kills"
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On NCIS: Los Angeles Season 12 Episode 8, NCIS investigates the murder of a man about to reveal the source of a massive counterfeiting operation.

A Good Agent - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 7
"Overdue"
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On NCIS: Los Angeles Season 12 Episode 7, the team's investigation of a man who sold military information that could be developed into advanced weaponry.

Deeks Is Struggling - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 6
"If The Fates Allow"
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On NCIS: Los Angeles Season 12 Episode 6, before Christmas, Hetty assigns Callen the case of his former foster brother who has been framed for smuggling drugs.

Face to Face - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 5
"Raising the Dead"
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On NCIS: Los Angeles Season 12 Episode 5, Kensi must come face-to-face with a sociopath who has been obsessed with her since she put him in jail years ago.

The Next Big Step - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 4
"Cash Flow"
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On NCIS: Los Angeles Season 12 Episode 4, a murdered Navy reservist is found in the midst of a robbery and NCIS must work with the burglars to find the killer.

In Danger - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 3
"Angry Karen"
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On NCIS: Los Angeles Season 12 Episode 3, when Nell sends Sam to meet an informant who plans to blow the whistle on a military secret, Sam's life is in danger.

A Missing Witness - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 2
"War Crimes"
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On NCIS: Los Angeles Season 12 Episode 2, as the trial begins of a Chief Petty Officer who was arrested for war crimes, the team helps find a missing witness.

Searching the Desert - NCIS: Los Angeles
Watch NCIS: Los Angeles Season 12 Episode 1
"The Bear"
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On NCIS: Los Angeles Season 12 Episode 1, Hetty gives Nell a cryptic assignment, while Callen and Sam must track it down a Russian bomber in the desert.

NCIS: Los Angeles Season 12 Quotes

Fatima: You think there's a chance we shot it down?
Sam: I sure as hell hope not.
Callen: If so, Russia would consider that an act of war.

Nell: Hetty? Where are you?
Hetty: Where I want to be.