← NCIS: Los Angeles

NCIS: Los Angeles poster

EPISODE · PARAMOUNT+

NCIS: Los Angeles

Season 4 · Episode 20

Landed Tue, 9 Apr 2013 · 21:00 your time · 1 episode · 1h 0m

Season 4, Episode 20 of NCIS: Los Angeles aired Tuesday, 9 April 2013 at 9pm ET on Paramount+.

Open in Paramount+

EPISODES0 of 1 watched

S04E20Purity60mWhen 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.

NEXT IN SEASON 4

Episode 21

Tue 23 Apr · 21:00

NCIS: Los Angeles poster

NCIS: Los Angeles

14 seasons · 323 episodes · ended

Open full series →

AVAILABILITY

Available on Paramount+ in United States.

Hiding unaired spoilers · profile →