Big news is coming fan's of NCIS: Los Angeles' Densi.

Series creator Shane Brennan previously stated that LAPD Detective Marty Deeks (Eric Christian Olsen) and NCIS Agent Kensi Blye (Daniela Ruah) would be split up by midseason. Meanwhile, Deeks will receive some shocking news around the same time and episodes 10 and 18 have been earmarked as major Densi milestones.

NCIS: LA' Season 5 Spoilers: Explosive Episode PHOTOS, Sam Consoles Callen, Team and Hetty's Job At Risk? VIDEO

"This season is the season of Kensi and Deeks. We haven't hesitated to pull this story forward, which started with the spontaneous kiss that opened up this Pandora's Box of emotions," Brennan said, according to Xfinity. "A little later in the season, around Episode 10 or so, things take a fairly difficult turn for both of them. About eight episodes later, there is a pretty shocking revelation that deeply affects both of them and has them both questioning everything about their relationship, particularly Kensi."

Penned by Dave Kalstein and dubbed "Frozen Lake," episode 10 has created a buzz on twitter. Set to air as final episode of November sweeps, the John Peter Kousakis directed work has been referred to as a game changer.

"It will be dynamic, enigmatic and test the heart of our series," Kousakis tweeted in mid-September.

Although actual details of the episode are few and far between, asides from the Deeks/Kensi plotline, there will also be an "epic fight scene" and at least one severed head.

'NCIS: LA' Season 5 Spoilers: Whats in 'The Box'? Is the Densi Relationship Linked to Kensi's Gift to Deeks? VIDEO

Click through the gallery above to view some behind the scenes photos from "Frozen Lake."

NCIS: LA airs Tuesdays at 9 p.m. on CBS. Click the video below to check out a scene from next week's episode.