NCIS: Los Angeles has a mole to catch, and the team will get down to business early in season 6.

New 'NCIS: LA' Villain Is 'Bad Guy To The Max', Intense Action Coming

It is unknown when the mysterious mole will start to mangle the team's operations, but a compromised agent will be discovered in episode 2, "Inelegant Heart," and Director Vance (Rocky Carroll) will have some disturbing news for Hetty (Linda Hunt) during episode 3, "Praesidium." Either of these events could spark the team's search for a mole in episode 7 (air order unconfirmed).

"Concept meeting for E607," tweeted executive producer John Peter Kousakis on Wednesday. "[Eric] Pot directing. The mystery begins. #jpkteaser searching 4 the mole. #NCISLA #staytuned"

Kensi To Beat Up Deeks On 'NCIS: LA'? Find Out What's Next For Densi

Will the mole have anything to do with Hetty's current predicament in Washington, or will the two events be completely separate? Looks like Callen (Chris O'Donnell) and Co. will have their work cut out for them in season 6.

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, "Deep Trouble: Part 2."

Tags: NCIS: LA NCIS: Los Angeles television CBS