Episode list

After months of planning, the NCIS family celebrates the wedding of Kensi and Deeks.

The mole has once again compromised the NCIS team as planted evidence results in the arrests of Callen, Sam, Granger and Deeks, on the day Under Secretary Duggan returns for Hetty's resignation.

The team helps NCIS agent Tony DiNozzo track down a money launderer who escaped just before being brought into his custody.

Callen and the team try to save a child in imminent danger who has been brainwashed by a terrorist cell. Also, Deeks and Kensi discuss having children.

After Sam's wife, Michelle (Aunjanue Ellis), is taken from her home, the kidnappers demand the prison release of Tahir Khaled (Anslem Richardson), Sam's arch nemesis, in exchange for information on her whereabouts.

Kensi and Deeks go undercover as a married couple housesitting in a gated community to identify a Russian sleeper agent believed to live in the neighborhood; a Russian businessman, who's also a link to the unknown agent, dies at a local hotel. G and Sam visit an old Russian friend of G, and Kensi tries to visit an aged neighbor; they all get reactions; Eric finds a lie, so Kensi sniffs around and finds herself in a chick fight; the other girl agrees to tell all, but she too dies; still, though, she gives a Russian name, and she says that he is nearby. G and Sam return to Arkady to find out why he lied; they find the dead body of Arkady's bodyguard plus two men trying to kill Arkady; Kensi and Deeks go to an interesting dinner, and Sam shows G a disturbing image; on the way home Kensi and Deeks run into trouble with a gay couple; however, they discover the Russian long-time sleeper agent, who recently became active. The team finish putting the pieces together.

Callen, Sam and Kensi, along with an unconscious Deeks, search for a safe way out of Mexico, while a cartel boss places a bounty on their heads.

Deeks is arrested and interrogated in connection with the murder of his former partner, while the team tries to prove his innocence.

One agent is held in an unknown location and being tortured by the mole, while another is betrayed by someone unexpected.

Akhos Laos, a former black ops agent originally recruited and trained by Hetty Lange, returns to seek revenge on Hetty for the life she introduced him to.