'NCIS Los Angeles' Season 6 Spoilers: Episode 1 'Deep Trouble Part II' Airs On Sept. 29, 2014, Find Out What Will Happen To Sam And Callen [WATCH VIDEO]
IN PHOTO: Actress Daniela Ruah from the TV series "NCIS:Los Angeles" arrives at the 2010 People's Choice Awards in Los Angeles January 6, 2010. Reuters/Danny Moloshok

The "NCIS Los Angeles" Season 6 premiere titled "Deep Trouble Part II" aired on Monday, Sept. 29, 2014. It focused mainly on the Naval Criminal Investigative Service, or "NCIS" Special Agents Sam Hanna (LL COOL J) and G. Callen (Chris O'Donnell) who were trapped inside a submarine deep beneath the Pacific Ocean. The other members of the "NCIS" team including Henrietta "Hetty" Lange (Linda Hunt), "NCIS" Special Agent Kensi Blye (Daniela Ruah), "NCIS" Intelligence Analyst Nell Jones (Renée Felice Smith), LAPD Detective Marty Deeks (Eric Christian Olsen) and Tech Operator Eric Beale (Barrett Foa) were also featured in this episode. Read on for the "NCIS Los Angeles" Season 6 Premiere recap of episode 1 "Deep Trouble Part II" to find out what happened to Sam, Callen and company.

"NCIS Los Angeles" Season 6, episode 1 "Deep Trouble Part II" was written by R. Scott Gemmill and directed by Dennis Smith. Here's what happened in "Deep Trouble Part II." Hanna and Callen learned that the terrorists who held them as hostages in a sinking submarine filled with ammonium nitrate also want to attack an area in San Diego, California. Not only are their lives in danger, but also a lot of innocent lives are at stake if the planned attack is executed. The terrorists' target is an aircraft carrier. As Kensi, Nell, Deeks and Eric put their heads together to help locate Callen and Sam, Hetty went ahead and canceled her Washington, D.C. trip against the direct orders of her superiors.

Fans of "Densi" are in for a treat because Deeks and Kensi are together again. They rode a helicopter to make the search for Sam and Callen much faster. DEA agent Talia Del Campo (Mercedes Masohn) was also in this episode which thoroughly annoyed Kensi.

"NCIS Los Angeles" Season 6, episode 1 "Deep Trouble Part II" also featured Miguel Ferrer (Owen Granger), Rafi Silver (Ali Hanna), Amol Shah (Team Member), Chervine Namani (Yusef), Andy Mackenzie (Michael Wilson), Jason Mac (Driver), Mercer Boffey (Doug Fisher), Kieu Chinh (Madge), Tony Elias (FBI Swat Officer), Irene Choi (Intern), Christina Ferraro (Judy) and Clark Freeman (DEA Agent).

This is the "NCIS Los Angeles" Season 6 Premiere recap of episode 1 "Deep Trouble Part II." Don't miss "NCIS Los Angeles" every Monday nights from 10:00 to 11:00 p.m. EST on the CBS Television Network. The next "NCIS Los Angeles" episode is "Inelegant Heart" and it will air on Oct. 6, 2014. For more updates about the show and other news about entertainment, health, business, science, politics, technology, sports and finance, keep reading International Business Times.

Watch The "NCIS: Los Angeles" - "Deep Trouble, Pt. II" Behind-The-Scenes Video Below:

Credit: YouTube/NCIS: Los Angeles

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'NCIS Los Angeles' Season 6 Spoilers: Episode 1 'Deep Trouble Part II' Airs On Sept. 29, 2014, Find Out What Will Happen To Sam And Callen [WATCH VIDEO]

NCIS: Los Angeles Spoilers, Season 6 Premieres on Sept. 29, 2014 [WATCH VIDEOS]