NCIS: Los Angeles' Marty Deeks will get himself into some hot water before season 6 comes to an end.

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The LAPD detective will find himself in a predicament in episode 618 (filming as 616), one that even Hetty (Linda Hunt) will be unsure how to handle.

"Prep of E616 written by [Andrew Bartels] begins this week," executive producer John Peter Kousakis teased on Saturday. "All I can say...What has Deeks done? Even Hetty is in a quandary. #StayTuned #NCISLA."

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So what will Deeks (Eric Christian Olsen) do to leave the unflappable Hetty without a plan? Will Deeks and Kensi (Daniela Ruah) finally spill the beans about their relationship? If so, Kensi would probably be in trouble as well.

Considering Deeks is not actually a member of NCIS, a major mistake could send the liaison back to LAPD for good. The series used that storyline as a ploy back in season 3, but another (hopefully temporary) dismissal of Deeks could still be in the cards.

What do you think will happen to Olsen's character? Sound off in the poll below!

Find out more when NCIS: LA airs Mondays at 10 p.m. ET on CBS. Click the video below to see a preview for the series' latest episode.