The detectives of 'NCIS: Los Angeles' will find the goings pretty difficult in Season 6 Episode 9 entitled "Traitor," of the military drama and police procedural series on CBS. Viewers will witness how the characters react when they find out their headquarters has been broken into by a double agent.

The official synopsis of "Traitor" released by CBS recently reads, "Hetty is going to order a lockdown after Granger is poisoned by the mole and Eric is going to become one of the seven suspects in the case."

The upcoming episode is expected to be a very dramatic one and fans will see Hetty Lange (Linda Hunt) compelled to shut down the NCIS headquarters with a view to investigate which member or members of the team tried to poison Owen Granger (Miguel Ferrer). In addition, the other characters of the show also undertake their individual investigations to expose who among them actually has such a dangerous motive. As a result, the entire NCIS team is trapped in chaos, distrusts, and dissension in the members' attempt to hunt down the culprit.

Eric Beale (Barrett Foa) is among the suspects in this case. His loyalty is being doubted owing to the recent turn of events in recent times. Therefore, Eric, who is the tech operator of the NCIS team, will be seen facing a tough time this week. In fact, things will become worse for the team does not discover the traitor soon.

"Traitor" will also feature Sarayu Rao as Dr. Susan Depaul, and Parry Shen in the role of the character named Ty. They will both be guest stars in the upcoming 'NCIS: Los Angeles' Season 6 episode.

The main cast of the series comprises Chris O'Donnell who portrays the role of Special Agent-in-Charge G. Callen, Daniela Ruah as Special Agent Kensi Blye, Hunt as Operations Manager Hetty Lange, Ferrer as Assistant Director Owen Granger, Adam Jamal Craig as probationary agent Dominic Vail, in addition to LL Cool J as Sam Hanna.

"Traitor," 'NCIS: Los Angeles' Season 6 Episode 9, will air on Monday, Nov. 24, on the CBS network.