Reeling from his father’s murder, Parker goes to extreme lengths to hunt down the woman he holds responsible, mob boss Carla Marino, jeopardizing not only his own future but the team’s.

Parker’s pursuit of vengeance for his father’s murder could have deadly consequences, while his sister, Navy vice admiral Harriet Parker, faces an impossible choice.

When a petty officer’s death is connected to a blackmail investigation, the team is forced to work with Special Agent Sawyer on the case, which takes a terrifying turn for Torres. Meanwhile, Knight is offered an opportunity to train with NCIS Elite.

The team investigates a U.S. marine who is believed to have kidnapped a man's wife.

The cold case of a small-town death of a naval officer in the ‘90s is unexpectedly re-opened in the present day, sending the team on a manhunt for justice. The crossover starts on NCIS: Origins S02E05 Funny How Time Slips Away (I).

A kidnapped teen leads the team to a Navy SEAL who survived captivity by the Taliban but may have committed murder after returning home. Also, Jimmy finally shares his findings about the mysterious death of Parker’s mother with his boss.

When a man is shot by the Secret Service outside the vice president’s official residence, NCIS is aided in the case by a new member of the team: an AI chatbot being beta-tested by the Department of Justice.

McGee and Torres try to recover a stolen truck filled with toys for the Navy’s annual Christmas drive while the truth about Parker’s mother is finally revealed. Also, Knight is given her first NCIS: Elite mission, which involves tracking down a former member of the team.

On her first NCIS: Elite mission, Knight is given orders to hunt down and arrest Eleanor Bishop after the former member of the NCIS team is designated a wanted cyber-terrorist. In need of someone to trust, Bishop turns to Torres, and the two come face to face for the first time since she abruptly left nearly five years ago.

When a desperate man barricades himself inside an ammo warehouse, Knight is the only negotiator he’ll talk to, claiming she once saved him before. As explosives tick and trust frays, Knight clashes with the CID officer running the standoff, each convinced theirs is the only way out.

A murdered drone pilot leads the team to a missing woman from McGee’s past and a relationship he thought was long behind him. But as the case deepens, McGee realizes her reappearance could unravel more than an investigation, it could change the course of his life.

When the son of a Marine that Gibbs once helped comes to NCIS in desperation, the fractured team reunites off the books; chasing justice without a badge may cost them more than their careers.

Navy Week turns electric when a stolen squad car flips and reveals a sailor stabbed in the trunk; as D.C. spirals into chaos, the team chases a killer while carrying the weight of recent events.

A murder aboard a museum ship becomes a cryptic treasure hunt when a dying Navy captain leaves a final clue; to solve it, the team must decode what was worth killing -- and dying -- for.

S.O.S. A Navy lieutenant resurfaces a year after her plane vanished with a story that doesn’t quite add up. As the team peels back the mystery of a crash that was anything but accidental, every answer sparks a new twist.

With most of NCIS away and the mainframe shut down for a midnight upgrade, Kasie and a skeleton crew are left in a darkened building when someone begins hunting from inside. What starts as a routine reboot becomes a high-stakes game of cat and mouse through powerless hallways until an unexpected ally, Sam Hanna, steps into the fight.

The team races to help one of their own who has been framed for murder and caught in a widening conspiracy that could compromise national security.

As a secret immunity deal threatens to let a man walk free, Parker fights to keep the case alive. But when his estranged sister suddenly appears – and buried family wounds resurface – the battle for justice becomes deeply personal.

One year after a deadly coffee shop bombing, a new explosion proves the attack wasn’t the work of a lone wolf – a case that forces the team to confront legacy and loyalty.