The ninth season opens with Hetty submitting her retirement papers and vanishing from sight. A new executive director takes office, swiftly implementing changes to the department's personnel. Simultaneously, Sam, still grappling with the lo…

The daughter of a notorious counterfeiter has arrived in Los Angeles, prompting Sam to go undercover as a financier. Meanwhile, Callen teams up with Anna to trace the family’s newest operation.

In Los Angeles, while investigating the murder of a Navy Lieutenant on leave, the NCIS team discovers classified surveillance reports she had secretly brought with her. These documents appear to have been offered for sale to a foreign entit…

The theft of weaponry valued at a million dollars on the black market set the team on a trail of evidence leading to an exclusive charity gala. As a result, Mosley was included on the guest list, accompanied by Callen and Sam as her securit…

Following the murder of a well-known investment banker with connections to a Russian oligarch, Sam assumes the identity of a day trader to infiltrate the world of high finance. Simultaneously, one of Callen's assumed personas becomes the ta…

Detective Whiting of the LAPD finds himself indebted and calls upon Deeks for assistance when Deeks' former partner descends into unpredictable behavior.

Kensi arrived at the missile launch facility, tasked with a critical mission: to prevent the acquisition of nuclear weapons by an unknown adversary.

The investigation demands the identification of those who unlawfully crossed the border and assaulted California Highway Patrol officers. In response, Homeland Security dispatches Nell’s elder sister, a woman known for her assertive nature,…

When CIA Agent Joelle Taylor, having narrowly escaped a kidnapping, seeks assistance from Callen, he and his team find themselves compelled to scrutinize her past. They delve into the details of her history, seeking clarity amidst the circu…

The NCIS team pursues a formidable adversary, driven by a thirst for vengeance against the man responsible for her father’s demise: a Brazilian diplomat targeted for assassination.

A ransomware attack has plunged West Los Angeles into darkness, crippling the city as the power grid fails. Simultaneously, Sam grapples with the approaching holiday season, the first since his wife's death, and the difficult task of planni…

The discovery of napalm at the scene immediately triggers an NCIS investigation, focusing on the single victim and exploring any potential connection to terrorist activity.

As Hetty endured brutal treatment at the hands of her captors in Vietnam, Eric and Nell discovered a vital clue to her location. This meager piece of information spurred the team into action, hastily assembling a rescue mission with remarka…

From the aftermath of the Vietnam War, Callen, Sam, Kensi, and Deeks assemble with Hetty’s core team – Sterling Bridges, A.J. Chegwidden, and Charles Langston – for a perilous and clandestine rescue operation. Their objective: to liberate H…

At the behest of Callen and Sam, Jennifer Kim – a former intelligence operative and Granger's daughter – is brought out of witness protection. The team needs her unique skills to track down a clandestine agent who has acquired a significant…

When the Diplomatic Security Service takes his father, Nikita Aleksandr Reznikov, into custody as part of a prisoner exchange for two American photographers held hostage in Iran, Callen explores every possible avenue of escape.

During the course of a missing persons investigation, the team stumbles upon a killer who stages elaborate performances for wealthy voyeurs. Simultaneously, Mosley assigns Callen as her partner on an ATF operation targeting someone from her…

When Arkady Kolcheck alerts NCIS to the return of a notorious international arms dealer, Callen and Sam collaborate with Anna Kolcheck and the Bureau of Alcohol, Tobacco, and Firearms (ATF). The investigation further demands that Eric assum…

When a cryptocurrency farm suffers a theft exceeding ten million dollars in Bitcoin codes, Sam and Hidoko embark on an undercover operation. Sam assumes a familiar guise, one likely tainted by his past.

Callen, Sam, and Nell are tasked with recovering remnants from a disastrous rocket launch, among them a highly classified piece of government technology. Meanwhile, Hetty endeavors to ease Keane's transition to life in the United States.

A Marine's death, caused by an unusual nerve agent, draws the attention of both NCIS and the FBI, prompting a joint investigation. Meanwhile, Deeks confides in a colleague, revealing his ambition to leave law enforcement behind and realize …

The NCIS team is called upon to investigate the murder of a federal prison inmate, a woman who had been adopted by a notorious counterfeiter. Meanwhile, Callen is summoned by the ATF Internal Affairs board to answer questions regarding Anna…

Following Sam’s injury in the exchange with the cartel, a suspect in the firefight was questioned. Under pressure, he divulged information regarding the location of Spencer Williams, the man responsible for the kidnapping of Mosley’s son fi…

Though shadowed by significant concerns from several within the team, NCIS journeys to Mexico on a perilous mission: to find and secure the release of Mosley’s son.