Episode 1 : Endgame
Following Callen's public shooting of the Chameleon on last season's finale cliffhanger, all is not well with the NCIS: LA team, as Callen is placed on suspension and Hetty adjusts to retired life.
Episode 3 : The Fifth Man
The NCIS: LA team investigate a compromised intel operation after four people connected to the classified project are killed at a diner explosion. As Deeks and Kensi are on the trail of those involved, they learn that a wayward teenage girl might be related and Kensi can't help but be empathetic to her situation. The real-life mothers of stars Chris O'Donnell, LL COOL J, Daniela Ruah and Eric Christian Olsen will appear in the episode alongside their children.
Episode 4 : Dead Body Politic
The NCIS: LA team investigates the tragic death of a U.S. senatorial candidate's staffer who is run over crossing the street. The high-profile case becomes a matter of national security as the agents must determine whether it is an isolated tragic incident or a politically connected plot that might put others in danger.
Episode 7 : Skin Deep
The NCIS: LA team heads to the beach to question the possible link between a surfer, an Internet video and a dead Naval tech scientist. Meanwhile, as Callen and Hanna investigate the victim's intelligence connections, Deeks and Kensi go undercover to catch their suspects and some waves.
Episode 9 : The Gold Standard
The NCIS: Los Angeles team investigates the strange and brazen heist executed by gunmen in costumes that could directly impact the U.S. economy. Meanwhile, as Deeks testifies on a case, Granger insists on partnering up with a very reluctant Kensi.
Episode 10 : Free Ride
Callen, Sam, Kensi and Deeks spend Christmas aboard an aircraft carrier investigating the death of a fellow NCIS special agent. Meanwhile, Nell and Eric make the most of the holidays back at headquarters and Hetty takes a trip.
Episode 24 : Descent
An explosion in the desert rekindles the search for stolen nuclear weapons and prompts Hetty to shuffle the NCIS: LA partnerships, sending Callen and Kensi overseas and Sam and Deeks teamed up stateside. Aunjanue Ellis guest stars as Michelle Hanna, Christopher Lambert guest stars as Marcel Janvier and Timothy V. Murphy guest stars as Isaak Sidorov.