While Pride fights for his life in the ICU, the team scours the city for the hit woman who attempted to assassinate him.

The team investigates multiple murders tied to a construction company creating an experimental chemical that strengthens sea walls. Also, evidence from Hannah’s previous mission in Oman is used against her as blackmail.

Pride and Lasalle travel to war-torn South Ossetia in Russia to locate FBI Special Agent Raymond Isler, who was kidnapped during a failed mission to apprehend the leader of Apollyon, the underground spy network responsible for murdering Pride's father.

After tracking Apollyon, a deadly underground spy network, to war-torn South Ossetia, Pride is separated from the team and faces grave danger. Also, in order to save Pride, the NCIS team must locate a mole who continues to feed information to Apollyon.

Pride must cut his vacation short when Hannah is suspended for breaking protocol during a joint investigation with the FBI.

Lasalle hopes to avenge his brother’s murder by tracking a drug ring in Alabama he believes is responsible. Also, when Pride assists with the case, he crosses paths with Eddie Barrett (Eddie Cahill), an elusive individual who knows more than he is sharing.

Pride is cut off from the team and backed into a corner after the investigation into Eddie Barrett uncovers a malicious plot.

Tammy must protect Rachel, a research-obsessed teenage girl, after her father is shot in their home, while the rest of the team searches for a motive.

While on a sunrise jog, Pride is grabbed by two masked men who order him to complete a series of tasks in order to save Wade and his father, Cassius Pride, who are being held captive.

While undercover, Gregorio joins a social club for military wives after one of the members is contacted by an ex-boyfriend on the FBI Most Wanted List.

Pride and the team reunite with conspiracy journalist Oliver Crane after the source for his latest vigilante story is murdered. Also, Hannah’s former partner, Liam Somers, surprises her in New Orleans and shares a shocking revelation about an old case.

After an elusive terrorist with a personal vendetta against Hannah resurfaces, she is placed in protective custody with her family while the NCIS team searches for the suspect’s whereabouts.

The NCIS team investigates the murder of Patton's friend, a former Navy Seal gunned down in a drive-by shooting while Patton helplessly watched.

A Navy lieutenant from a well-connected and affluent family has a fatal fall down a flight of stairs at a charity gala; the team investigates whether his death was an accident or foul play.

When Elvis Bertrand's "daughter" is linked to an NCIS murder case, he asks Pride to prove her innocence.

Tammy is convinced that a con man committed the hit-and-run murder of a Navy doctor, even though the evidence shows otherwise. Also, unbeknownst to Hannah, her husband, Ryan Porter, approaches Pride with new intel on Apollyon, the underground spy network responsible for murdering his father.

The NCIS team investigates a deadly bombing at a military museum event with over 1,000 people in attendance.

Pride travels to New York after new evidence links to a 20-year-old cold case from his time at Jefferson Parish Sheriff's office.

Navy Lieutenant Max Landry asks the New Orleans field office for help when he suspects his girlfriend is a spy. Also, Lasalle faces another devastating dead end as he searches for his brother’s last known whereabouts.

After a natural gas explosion at a movie theater, the NCIS team discovers the gas company has been hacked and more explosions could be triggered.

After Eddie Barrett provides an alibi witness, Pride and the team are more determined than ever to find a break in the case and avenge Lasalle's murder.

The team is concerned when Sebastian becomes unreachable while undercover as a new recruit.

The team investigates the murder of a JAG captain who was discovered at home by his daughter, the only heir to his large estate. Also, Sebastian is intimidated when he is put in charge of a team on his first day of Regional Enforcement Action Capabilities Team (REACT) training.

When a man impersonating Lasalle attempts to free a young woman from jail, the team investigates both the imposter and the prisoner. Also, Pride's daughter pays him a surprise visit.

When Sebastian is injured while unsuccessfully trying to prevent a kidnapping, NCIS races to find the missing woman and her abductors; the team gets a peek into Agent Carter's personal life.