NCIS: Los Angeles' workplace romance is a secret no more.

'NCIS: LA' Season 6 Spoilers: Origins Of Major Relationship Revealed, Will It Involve Callen & Hetty?

Deeks (Eric Christian Olsen) and Kensi's (Daniela Ruah) proverbial cat is out of the bag, or it will be by time episode 18 airs. Titled "Fighting Shadows," the upcoming episode will see the entire team switch partners, an unscheduled rearrangement that immediately throws up red flags for Densi.

"When three FBI agents are killed in an explosion following a successful undercover sting operation, the team searches for the person behind the attack," CBS teased. "Meanwhile, Deeks and Kensi realize the team knows about their relationship, as Hetty pairs Kensi with Sam and Deeks with Callen during the investigation."

'NCIS: LA' Season 6 Spoilers: Callen's Past Revisited, What Will Be Revealed In 'Rage'?

Well, considering the couple is working around a troop of eagle-eyed investigators, it's a miracle their unsanctioned co-ed activities weren't exposed earlier. It's a problem that LAPD detective and NCIS agent were keenly aware of when they first kissed back in the season 4 finale.

"I think eventually the team's going to have to know what's going on between Kensi and Deeks," Ruah explained to TV Guide before the season 6 Christmas episode. "I don't think it'll be a surprise for any one of the other characters, especially not Hetty. I think she could see it coming a mile away."

Find out how the team will react when "Fighting Shadows" airs on March 23.

Catch NCIS: LA Mondays at 10 p.m. ET on CBS. Click the video below to see a preview for the series' next episode, "Savoir Faire."

Tags: NCIS: LA NCIS: Los Angeles television CBS