NCIS: Los Angeles will bring the heat in episode 22.

'Significant Revelations' Planned For 'NCIS: LA' Finale, What Will They Deal With?

Titled "Field of Fire," the upcoming installment will become the second in a three-part arc for the agents of NCIS. Robert Florio ("Exposure," "Raven & the Swans") will direct the Gil Grant ("Forest for the Trees," "Windfall") scripted episode.

"Field of Fire" (filming as 620) will follow Diana Valentine's "Beacon," setting up a story that will last until season 6's penultimate episode.

Who Will Come Between Nell & Eric On 'NCIS: LA'? Ops Will Get Some Help In 'Blaze Of Glory'

"#HappySunday #NCISLA begins production on E619 [Diana Valentine] is at the helm. [Jordana Lewis Jaffe] is Scribe. 1st of 3pt. #staytuned #jpkteaser," executive producer John Peter Kousakis tweeted in early March.

The interconnected storyline will conclude just before the finale, an episode that is set to drop some major revelations.

In the meantime, Hetty's team will take on a hacked missile crisis during "Blaze of Glory." Set to air on March 30, "Blaze of Glory" will stir up trouble in Ops when a new analyst comes between Nell and Eric. Click the video below to see a preview.

Find out more when NCIS: LA airs Mondays at 10 p.m. ET on CBS.

Tags: NCIS: LA NCIS: Los Angeles CBS television