"NCIS Los Angeles" Season 7 will air its second episode Monday from 10 p.m. EST on the CBS Television Network. The Naval Criminal Investigative Service, or "NCIS" LA Team featuring LAPD Detective Marty Deeks (Eric Christian Olsen), “NCIS” Special Agent Kensi Blye (Daniela Ruah), Supervisory Special Agent G. Callen (Chris O'Donnell), Operations Manager Henrietta "Hetty" Lange (Linda Hunt) and Senior Field Agent Sam Hanna (LL COOL J), will help out the Drug Enforcement Agency solve a crime that involves one of their agents.

Plus, Kensi will also be suspicious of Deeks because he seems to be hiding something from her.

Spoiler Alert! This article contains "NCIS Los Angeles" Season 7, episode 2 spoilers.

In “Citadel,” DEA Agent Talia Del Campo (Mercedes Mason) will ask for help from the “NCIS LA” crew which also includes “NCIS” Intelligence Analyst Nell Jones (Renée Felice Smith), “NCIS” Assistant Director Owen Granger (Miguel Ferrer) and Tech Operator Eric Beale (Barrett Foa). Agent Del Campo’s partner is murdered and she wants to get to the bottom of the mystery. Meanwhile, Deeks’ mom (Pamela Reed) will visit her son. Deeks will surprise Kensi by introducing her to Mrs. Deeks. It looks as if Deeks and Kensi’s relationship will become more serious.

Guest stars of “NCIS LA” episode 2 include Shannon Cochran (Dr. Susan Rathburn), John Sloan (DEA Agent Mark Moore) and Erin Krakow (Emily Moore). “Citadel” is directed by Eric Laneuville and written by Dave Kalstein. The Internet Movie Database (IMDb) reported that Jake Lockett (Jon Bennett) and Craig Tsuyumine (Assistant) will appear in this episode.

The events of the “Citadel” come after the “NCIS LA” Season 7 premiere titled "Active Measures," which was about Callen’s search for information regarding Arkady Kolcheck (Vyto Ruginis). Unfortunately, his rogue mission turned out to be deadly. It’s a good thing his teammates were able to find him even if he kept it a secret from them.

“NCIS Los Angeles” Season 7 airs on Monday nights at 10/9c on CBS. Click here to see some sneak peek photos from the show’s official website. Click here and here to watch sneak peek videos of "NCIS Los Angeles" Season 7, episode 2 titled “Citadel.”