NCIS: Los Angeles's mole will strike again, this time taking down Assistant Director Granger.

Dark  'NCIS: LA' Episode Title Revealed, Search For The Mole Begins

Hetty (Linda Hunt) is safe - for the moment - but Granger (Miguel Ferrer) will get a dose of poison during "Traitor."

Set to air as the ninth episode of season 6, "Traitor" will reignite the search for the agency's leak, and Eric Beale (Barrett Foa) will quickly fall under suspicion.

'NCIS: LA' Promises 'Thrills & Suspense' Set For 'Spiral'; Will Episode Focus On Densi?

While no one would like to point fingers at the core characters, the tech operator will have to clear his name after he becomes one of Hetty's seven suspects. Unfortunately for Eric, being a suspect may be the least of his problems.

Foa recently teased some upcoming danger for his computer-savvy character, and "Traitor" may deliver just that.

"As we'll see down the line in a couple of episode, Eric has to defend himself," Foa said, according to TV Fanatic. "Our headquarters is infiltrated and there's a mole inside the office...and not the animal kind!"

Find out more when NCIS: LA airs Mondays at 10 p.m. ET on The CW. Click the video below to see a preview for the series' next episode, "Leipei."

Tags: NCIS: LA NCIS: Los Angeles television CBS