NCIS: Los Angeles2009 | TV Show

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An "NCIS" spin-off following the undercover agents of the NCIS Office of Special Projects, working from a Spanish mission headquarters in Los Angeles.

Premiered: September 22, 2009

Rating: TV-14

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Season 4, Episode 24 Descent

First Aired: May 14, 2013

The fourth season ends with a nuclear explosion in the Pacific. The event reignites a search for stolen nuclear weapons, and leads Hetty to shuffle partnerships. She sends Callen and Kensi overseas and leaves Sam and Deeks as a stateside team.

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Parley

Season 4, Episode 23

May 7, 2013

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Ascension

Season 5, Episode 1

September 24, 2013

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