New NCIS Los Angeles Season 4,Episode 20 Spoilers Revealed By CBS

Last night,CBS dished out the new, intense spoilers for their upcoming “NCIS: Los Angeles” episode 20 of season 4. The episode is labeled, “Purity,” and it sounds like it will serve up some pretty serious drama as a whole,large-scale,water supply is suspected of being contaminated as a couple of people come up,poisoned to near death,and more.

In the new,20th episode, cyanide in a communal water jug, will up ,lethally poisoning a lieutenant and leaves a Navy pilot in serious,critical condition, prompting the NCIS: LA team to investigate whether or not this is just an isolated incident or an early test for a large-scale water contamination operation that could possibly go down.

Episode 20 is due to air on Tuesday night,April 9th at 8pm central time on CBS. Follow us on Facebook by Clicking Here. Follow us on Twitter by Clicking Here.