In the next episode of "'NCIS: Los Angeles," the team led by agents G. Callen (Chris O'Donnell) and Sam Hanna (LL Cool J) investigate the shooting of law enforcement officers.

The trailer for the upcoming installment titled "Can I Get a Witness?" was released recently and showed three children secretly witnessing the shooting of a couple of policemen outside a house. "This is bigger than we thought it was," Callen tells Hanna as they are briefed by higher authorities. Apparently, a suspected dirty cop named Lieutenant Roger Bates from the Los Angeles Police Department (LAPD) is connected to the shooting and has since gone rogue. The agents' lives are threatened as the house where Marty Deeks (Eric Christian Olsen) and other officers are in is shot down by a mysterious gunman.

Consequently, Deeks is brought in by Detective Ellen Whiting (Karina Logue) because Bates used to be his partner at the LAPD. Whiting wants the agent to help bring the rogue officer into custody. However, Deeks thinks that Bates is innocent and somehow is just caught in the middle of the conspiracy. Whiting then blackmails the agent and says that if he does not cooperate, she will expose him as the killer of his ex-partner. It remains to be seen who the real killer is and if Deeks can get through the whole ordeal.

In the last episode, the team went on the trail of notorious weapons smuggler Abram Sokolov (Costas Mandylor) when a noted investment banker got killed. Callen and the squad were able to put a tracker on him eventually so that they could trace where he does business around the world. It is expected that they will encounter Sokolov once again in future episodes.

"NCIS: Los Angeles" season 9 episode 6 will hit the airwaves on Sunday, Nov. 5 at 9 p.m. EDT on CBS.