Season 6 ends with the team traveling to Moscow where they assume multiple undercover identities to locate suspects in an ongoing case. Meanwhile, Callen uncovers new information regarding his father.
Callen and Sam search for Arkady when crew members from the missing oil tanker used in his deal with Russia are found dead in the ocean. Their investigation also uncovers Arkady's personal connection to the ship.moreless
Callen and Sam are shocked when an old acquaintance they thought had been murdered shows up and asks for their help. Their investigation uncovers a possible breach of America's economic sanctions against Russia.moreless
The team members desperately search the city when they learn that someone from their past is targeting one of their own. Meanwhile, operational psychologist Nate Getz visits Nell to help her through a traumatic experience.moreless
When a senator's daughter is murdered, Homeland Security steps in. In a rush to solve the case, the squad could be putting national security at risk. Tommy starts to slip back into bad old habits which results in a fight with Frankie. Jane has some news that could change her life forever.moreless
While the NCIS team is investigating a kidnapping, Callen confronts the man who may be his father.
Sam fears for his family's safety when his wife is called to resume a former CIA cover after a case suggests ties to the infamous Sidorov and his stolen nukes. Aunjanue Ellis guest stars.moreless
Fiona stresses over booking a club night, while Lip stresses over the money she used to get the gig. Estefania's father recruits a hitman to follow Jimmy everywhere he goes. Meanwhile, Frank needs to find a new home.moreless
As their investigation continues, evidence turns up that links the death to a group of Russian agents. Sam's deepest secret is at risk of coming out.
Major Crimes division is still in shock over Chief Johnson leaving; Captain Raydor now has the responsibility of trying to gain the trust of the team under her leadership. With little time to adjust Major Crimes may have some difficulty to in reaching a plea bargain after a fatality due to a recent rash of grocery store robberies in the area. Detective Amy Sykes joins Major Crimes after providing much needed help in the case as an undercover cop. Sharon Raydor decides to look after a teenager who has run away and from his Foster family.moreless
Kensi and Deeks go house sitting in the suburbs to flush out a Russian sleeper cell.