Produced By James Whitmore Jr

G awakens from a dream, and Hetty tells him that Deeks has disappeared while on an extended undercover assignment for the Los Angeles PD after leaving the OSP; the two targets of Deeks's operation have died in the explosion of a car bomb, and the LAPD has lost contact with him; Hetty offers help, so Callen and company lend a hand. One of the dead bad guys, who had a long criminal record, had become recruited into human trafficking on the payroll of Lazik, a Serbian; as soon as an LAPD detective briefs the team at the boathouse, she too dies in a car-bomb explosion; Kensi comments on the similarities between the two explosions. Hetty directs G to find Lazik; Deeks approaches Hetty and tells her that he wishes to continue his operation; Hetty helps; Deeks meets Lazik and speaks with him, but the conversation quickly goes downhill; however, the three musketeers arrive and change the odds. Deeks figures out the rest, and the team tie up the loose ends.

A commander in Naval intelligence dies during a shootout involving others with the Los Angeles PD after a traffic stop; Callen returns to duty after recovering from his gunshot wounds incurred at the end of the pilot episode; the Office of Special Projects (OSP) has moved into different quarters. Director Vance says that the case of Callen's shooting remains open. The gang in LA find out about the victim, his sister, her daughter (who's missing), and a long-time best friend, who enters the scene and the action. Both Nate (the staff shrink) and Hetty (the operations manager) make constructive contributions. The team start putting the pieces together. Sam and Callen attend a party with fireworks, then they pitch a deal to someone who's someone else; the surprises multiply, and the atmosphere becomes tense, but Sam and Callen work things out and return the missing daughter to her distraught mother. Hetty spreads a blanket over Callen while he sleeps.

The season begins with ATF agent Percy joining the team. When a Naval convoy is blown up and the drivers are killed and the ordinance they were carrying is taken the team investigates. They get a lead that takes them to a former military man who is now an anarchist. When they find him, he shoots himself. They learn the man joined an extreme group of anarchists so Pride decides to go undercover to infiltrate the anarchists. But they make him remove the tracking device he had with him so the team needs to find a way to locate him.

Brandon is on a road trip through the USA when his car breaks down in a small town in Texas, and he encounters racism from the redneck locals after he befriends a young black girl, named Mariah. In Beverly Hills, Valerie seeks financial help from Kenny Bannerman, one of Jim Walsh's former coworkers, to revamp business for the Peach Pit After Dark. Meanwhile, David and Donna work together on another music video project and find that their renewed relationship may be on a short fuse. Also, Clare and Steve attempt to meet with each other after spending their summer away, unaware that they are at the same airport at LAX waiting for the other.

A spin-off of NCIS: Naval Criminal Investigative Service (2003) about the local field office of NCIS that investigates criminal cases involving military personnel in The Big Easy, a city known for its music, entertainment and decadence. This colorful city that harbors a dark side is a magnet for service personnel on leave, and when overindulgence is followed by trouble, Special Agent Dwayne Pride's team is at its best.