NCIS Los Angeles (2009)
Season 4: Episode 20
Purity
TMDb
Air Date:
Genre
Release Date
2009
End Date
2023
Episode Description
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.
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