An engineer who was developing a new guided missile destroyer is murdered. Callen and Sam go undercover to track his co-worker aboard a plane to Tokyo who intends to sell the classified intel. Meanwhile, Deeks plans a surprise get-together for Kensi and her out-of-town friends.moreless
The U.S. Treasury Department is hacked, and Neil and Eric go undercover inside a couple's retreat to track a tech-savvy husband and wife who are linked to the crime. Meanwhile, Digital Forensics Specialist Dave Flynn arrives from the NCIS cyber office in San Diego to run ops while Eric and Neil are on assignment.moreless
Sam assumes a former alias in a risky undercover operation to take down an elusive drug lord. Meanwhile, Hetty interrupts Callen and Anna's romantic night to assign them a prisoner escort mission.
After a retirement home resident is kidnapped, the NCIS team uncover a pair of con artists: Ginger and Edward O'Boyle, who hop from home to home scamming the elderly out of their money. Meanwhile, Callen confronts his father on his illegal activity and the danger it places on their family.moreless
Emotions run high for the team as one agent is held in an unknown location and tortured by the mole, while another discovers he was betrayed by someone he least expected.
Hetty goes rogue, leaving the NCIS team completely in the dark, and the mole kidnaps one of the agents.
Planted evidence by the mole results in the arrests of Callen, Sam, Granger and Deeks, on the same day Under Secretary Duggan returns for Hetty's resignation.
A Navy reservist is killed while protecting a city councilman. Sam goes undercover at a private security firm with links to several criminal organizations to investigate. Meanwhile, Callen and Anna discuss the next steps in their relationship.moreless
The team investigates the disappearance of a Navy lieutenant commander who was working with the NSA on foreign cyber threats. Later, the team celebrates the holidays together.
A new lead in the ongoing mole investigation is uncovered after two men disguised as sheriff's deputies are killed in front of Callen's home by an unknown female assailant. Meanwhile, Nell visits a prison to interview an inmate who is withholding information on the department's leak.moreless
Callen interrogates his father after he is found in an NCIS patient's hospital room during a radiation poisoning case. Meanwhile, the team discusses their Thanksgiving plans.
NCIS investigates when a graduate student who is developing an electromagnetic weapon for the Navy is attacked. The probe reveals a connection to international warfare. Meanwhile, Kensi continues with grueling physical therapy for her spinal injury.moreless
Callen goes undercover as a patient in a mental health hospital to search for an NSA agent who disappeared while tracking an ISIS cell trying to cross the Mexican border.
A maintenance man stops an intruder from attacking a lieutenant commander but the probe uncovers his secret past which puts a teen in danger. Meanwhile, Sam must decide which colleague he should take to a football game.moreless
A navy machinist with high security clearance is murdered on the roof of a downtown high-rise building. Anna Kolcheck partners with Callen to investigate. Meanwhile, Sam assists Hetty in the on-going mole probe.moreless
After a Homeland Security agent is poisoned by a notorious Triad assassin, NCIS uncovers a warehouse of counterfeit purses and a money trail to stolen government funds. Meanwhile, Nell joins the team in the field.moreless
The team investigates an abduction case while down two members, with Hetty being held in Washington, D.C., for questioning in the mole probe, and another still in ICU following the mission in Syria.moreless
Season 7 ends with Sam receiving a distress code from his son Aiden that his military school in San Francisco has been taken over by an extremist group led by Tahir, Sam's arch enemy. Sam, Callen, Kensi and Deeks rush north in hopes of apprehending Tahir and freeing the hostages.moreless
Sam and Callen go undercover as firefighters when top secret information about suspected terrorists is stolen from a secure Department of Defense container at the site of a fire.
Granger escorts Jennifer Kim, a North Korean spy who is his long-lost daughter, back to Los Angeles and interrogates her.
The team learns that operational psychologist Nate Getz is working with an infamous crime leader, after he fails to check in with Hetty while working undercover on a mission linking organized crime to terrorism.moreless
The team members search for a North Korean spy when they are assigned to protective details for the commander of the Pacific Command.
Callen tries to connect with a boy in imminent danger who has been brainwashed by a terrorist cell. Meanwhile, Deeks and Kensi discuss having children.
A convicted Cuban spy escapes U.S. custody just before he is set to return to his country in a prisoner exchange; and the team is shocked when they learn that Anna helped him break free.moreless
After extensive surveillance footage of Sam's family is found in Africa, Sam and Callen fly there to determine who is responsible and for what purpose. Meanwhile, Sam's family is moved from their home to a safe house.moreless
Part 2 of 2. In Russia, Callen, Sam and Anna plot to break Anna's father and his CIA agent companion out of prison. Meanwhile, Callen finally learns what the "G" in his name stands for; and Kensi and Deeks take Eric into the field on an assignment in L.A.moreless
Part 1 of 2. In order to locate Arkady in Russia, the NCIS team goes undercover with his daughter, Anna, at a gala in Los Angeles to gain access to the Russian Consul General's computer.moreless
Kensi and Deeks announce they are moving in together and then are assigned to protect Kensi's ex-fiancé, who is in possession of a list containing important contacts in Afghanistan that people are willing to kill to get their hands on.moreless
The team investigates the murder of a tech entrepreneur turned venture capitalist who secretly developed a daemon, a background computer program that allows for undetectable data collection.
Kensi and Deeks go undercover at a decommissioned nuclear power plant to investigate the radiation poisoning of a gunnery sergeant who was moonlighting as a security guard at the facility.