NCIS: Los Angeles — Purity (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.

Watch NCIS: Los Angeles — Purity (S4 E20) Episode Free

Cast: Chris O'Donnell, Daniela Ruah, Eric Christian Olsen, Barrett Foa, Medalion Rahimi, Caleb Castille, Gerald McRaney, LL Cool J

Original title

NCIS: Los Angeles

Genres

Action & Adventure · Drama · Crime · Mystery

Release date

2013-04-09

Rating

7.2/10

Runtime

44 min

Status

Ended

Production countries

United States of America

Seasons

14

Episodes

323

Networks

CBS