NCIS: Los Angeles

Sam, working under cover as a bomb specialist, tries to help the team find stolen explosives in the city; Hunter changes the dynamics of the team.

NCIS teams up with the NSA in an effort to locate the mastermind behind a software program linked to a cyberattack on the Department of Defense.

A news reporter's murder leads to an investigation into Libya's rebel movement; Hetty reveals information about Callen's past.

When a Navy ID is found on a body linked to a hazardous material smuggling case, the team goes to Mexico to investigate and search for the missing materials.

The team must establish whether a dishonorably discharged Marine committed a murder or is being framed.

The Special Projects team travels to Romania to search for Hetty. Meanwhile, Eric and Nell discover that Lauren Hunter, the Office of Special Projects' Operations Manager, is a member of the Comescus.

After a former Navy intelligence officer is murdered, the team's investigation reveals she was living a double life.

The LAPD asks NCIS for help when a case exposes a link between a Mexican drug cartel and a terrorist.

While Sam investigates the murder of an Iranian, he must also try to save a new agent who accidentally triggers a bomb; Nell makes a decision about her future.

The team assists the DOJ in the investigation of an arsonist who targets an FBI safe house that's protecting a political activist seeking asylum; Eric deals with the aftermath of Nell leaving the team.

The team helps a former NCIS tech operator search for her missing ex-partner, whom they fear might be working with the gun runners they failed to take down years ago; Deeks reels when his bar gets a negative review.

An organized crime leader tries to buy stolen defense technology; Deeks is kicked out of NCIS training only to find that Hetty has a life-changing surprise for him.

Nell sends Sam to meet an informant who plans to blow the whistle on a military secret; Kensi and Deeks debate whether or not to buy their first house.

After Callen receives a cryptic message from Hetty, he tracks down the person tailing him, bringing him to a remote location teeming with Russians -- and face to face with Anna.

The body of a murdered Navy reservist is found by thieves in the midst of a robbery, and NCIS must work with the burglars to find the killer; Kensi and Deeks struggle to decide if they are ready to make the leap and buy a house.

Sam, Callen and Rountree travel to Afghanistan to help with a sensitive case after two SEALs claim their chief murdered an unarmed prisoner.

NCIS obtains a hard drive containing a deepfake of a deceased terrorist and must retrieve the dangerous technology behind it; communications are hijacked during the mission.

When the team investigates the murder of a man about to reveal the source of a counterfeiting operation, an old acquaintance becomes their prime suspect and reveals the true reason for her return; Deeks struggles during training.

The NCIS team's murder investigation of a man who sold military information leads to the abduction of a doctor whose cutting-edge neurotechnology could be developed into advanced weaponry; Callen tries to have an important talk with Arkady.

To rescue Joelle from further torture by the Russians, Callen and the team must offer up Anna as bait to Katya; Callen finally discovers who accused him of being a Russian spy.

When Callen goes to the National Counterterrorism Center on the pretext of interrogating a Russian asset from the crashed plane case he investigated months earlier, the tables are turned and he is accused of being a Russian agent.

When military grade technology is stolen, a deaf engineer helps Kensi and NCIS track down the tech before it's taken out of the country.

When a Russian bomber goes missing while flying over U.S. soil, Callen and Sam must track it down in the desert and secure its weapons and intel before the Russians on board destroy the plane; Hetty gives Nell a cryptic assignment.

When Sam's daughter is kidnapped after leading citywide protests, he will stop at nothing to find her; Deeks rejoins NCIS; Callen searches for answers about Anna.

Callen and the team discover that Anna is being held by a group with ties to Anna's upbringing and must rescue her before she is forcibly returned to Russia; Adm. Kilbride makes Nell a serious offer.

The NCIS team is called to help find the missing star witness in the trial of a chief petty officer who Callen and Sam arrested for war crimes.

When a missile test is hijacked and sent off course, the team searches for the hacking group responsible for the attack with the help of a computer specialist Hetty brings in to assist the team.

When three FBI agents are killed in an explosion following a successful undercover sting operation, the team searches for the person behind the attack.

Callen and Sam resume their undercover identities as a prisoner and guard to infiltrate a white supremacist group believed to be in possession of stolen nuclear material.

Callen takes on a secret project, leaving the team in the dark; when Hetty shuts down Callen's operation, the team must locate him before he gets in trouble.

Callen and Sam are shocked when an old acquaintance, who they thought was the recent victim of a murder, appears and asks for their help.

Members of the team must assume undercover identities in Moscow in order to locate their suspects; Callen makes a discovery about his father.

When DEA Agent Talia Del Campo's (Mercedes Mason) partner is murdered, she turns to the team for help; Kensi thinks Deeks is hiding something.

The team searches for a former Marine and expert sniper who escaped a veterans hospital when they discovered his connection to the leader of an extremist group.

Dead crew members turn up from the missing tanker involved in Arkady's deal with Russia; Arkady's connection to the ship is revealed.

When NCIS Special Agent DiNozzo's prisoner escapes custody, he turns to the Los Angeles team for assistance.

When Sam and Callen receive a cellphone, the caller threatens innocent lives if his instructions are not followed.

The NCIS team investigates a Peruvian massacre that occurred 20 years ago after it learns that a fashion model, who may have survived the incident, may now be in danger.

After a Navy SEAL is attacked while moonlighting at a security job for a successful marijuana dispensary, Sam personally vows to apprehend the suspect out of respect for the Navy SEAL brotherhood.

Faced with multiple cases worldwide, the team splits up, with Callen and Sam working in Tel Aviv while Kensi partners with Department of Justice Agent Lance Hamilton in Los Angeles.

Callen and Sam work to locate a group of ISIS sympathizers aboard the USS Allegiance; Hetty enlists her friend to help obtain information from a Russian diplomat.

Callen and Sam run protection detail for retired Navy Adm. Kilbride in an operation to locate a missing naval intelligence officer.

Callen and Sam work with Navy Capt. Harmon Rabb Jr. to apprehend spies aboard the USS Allegiance; Hetty tries to neutralize a missile attack in the Middle East; Kensi and Deeks are trapped in a mobile CIA unit in Iraq while under attack.

The NCIS team travels to Cuba for an unsanctioned mission after Callen gets a lead on Anna Kolcheck's whereabouts.

Callen and Sam travel to the USS Allegiance in the Persian Gulf to work with Navy Capt. Harmon ``Harm`` Rabb Jr. when the team learns about ISIS sympathizers who are targeting military locations.

After Anna Kolcheck escapes from prison with her cellmate, Callen and the NCIS team assist with the investigation and try to locate her.

Callen and Sam are aboard a ship that is placed under quarantine for possible Ebola exposure; Kensi and Deeks investigate the murder of a petty officer who recently departed the ship and is linked to the Ebola exposure.

Sydney turns to her sister Nell for help after her high school crush gets mixed up in a Russian plot to steal intelligence from the Department of Defense; Special Prosecutor John Rogers conducts mandatory performance reviews with the team.

Department of Justice Agent Lance Hamilton asks Sam for assistance in locating a former U.S. Border Patrol tactical officer who disappeared following a threat by the cartel.

After months of planning, the NCIS family celebrates the wedding of Kensi and Deeks; an old acquaintance pays Deeks a surprise visit on his wedding day.

The team travels to Syria to capture a high-value target, but the mission quickly goes awry.

A Triad assassin poisons a Homeland Security agent; the discovery of a warehouse of counterfeit purses reveals a money trail to stolen government funds; Nell joins the team in the field.

The murder of a Navy machinist sends the team on a citywide hunt for evidence; Anna Kolcheck (Bar Paly) partners with Callen and Sam in the on-going mole investigation.

A maintenance worker with a dark history puts a local teenager in danger; Sam has to choose which of his colleagues he'll take to the football game.

A short-staffed NCIS team tackles an abduction case while Hetty is held in Washington, D.C., and another team member remains in the ICU.