Results of Tags "NCIS: Los Angeles Season 4 Episode 20"
Eps20 NCIS: Los Angeles 4×20

NCIS: Los Angeles 4×20

NCIS: Los Angeles 4×20
Season 4
Episode: 20
Air Date: 2013-04-09

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…

Episode Title: Purity