NCIS: Los Angeles Season 4 Episode 20 “Purity” Guide

1 year ago, by

March 19, 2013

Here’s the official guide of NCIS: Los Angeles season 4 episode 20 “Purity”. This episode airs on Tuesday, April 9 on CBS.

THE NCIS: LOS ANGELES TEAM SEARCHES FOR A SLY CULPRIT IN POSSESSION OF STOLEN CYANIDE AFTER A NAVY LIEUTENANT IS POISONED –

  • 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.

Source: CBS