Gregorio calls on her former behavioral science professor, when the team's latest case matches one she studied during FBI training.

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.

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.

Tammy is reunited with her ex-husband, Ethan McKinley, who disappeared after embezzling $80 million in Katrina relief funds, after he is linked to the murder of a crime boss’ son.

Pride assembles an off-the-books team with hacker Elvis Bertrand, retired Green Beret Sydney Halliday journalist Oliver Crane and attorney Elliott Newman, to search for a loophole when he faces a grand jury indictment for abuse of power.

Pride’s newly formed off-the-books team and NCIS team uncover a sinister plot during the New Orleans Tricentennial Fleet Week celebration.

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.

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.

On the eve of his wedding to Rita, and Connor leaving for the Witness Protection Program, Pride must track down who attacked Jimmy and Connor, while navigating Sasha's ulterior motives regarding her son.

Pride and his team join forces with FBI Director Isler when a Russian operative, who is in the U.S. to provide intelligence on sleeper agents, disappears after his Navy escort is murdered. Meanwhile, Tammy partners with former sleeper agent Eva Azarova to locate the missing operative Eva has known since childhood.

After Rita Deveraux tells Pride that Douglas Hamilton is about to make a deal to get out of prison, Pride and the team rehash the Clearwater case in hopes of locating his mystery partner and spoiling his bargaining chip.

Sebastian receives a plea for help from his high-school friend Adrian Conner after her business partner is killed at the Crescent City Gaming Convention. Also, FBI Special Agent Raymond Isler believes Adrian is a hacker the Cyber Crimes division has been tracking for years.

The team places Mateo Diaz, a high school gang member turned informant, in protective custody while they investigate the murder of his junior reserve officers' training corps instructor; Pride needs his brother's help to gain Mateo's trust.

The team investigates the murder of a Navy contractor who secretly lived two lives for decades.

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.

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.

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.

While preparing to leave on a fishing trip, Martha Roberts, an erratic whistleblower who calls Pride her mentor, kidnaps him to help her locate a serial killer targeting young women in the Gulf of Mexico.

The NCIS team investigates the copycat murder of an unsolved case from 150 years ago that spawned a legendary New Orleans ghost story. Meanwhile, Gregorio gets spooked when the case is connected to a recent séance and a local medium.

Pride and his bar patrons, including Sydney Halliday who is visiting Pride after leaving the Army, are held hostage by a group of volatile thieves.

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

While NCIS investigates the murder of a Navy intelligence officer killed during a conference for foreign diplomats, the key witness cozies up to Sebastian. Also, Pride has some trouble adjusting to his new position at the agency.

Pride’s father, Cassius Pride, is wrapped up in an NCIS case involving a notorious unsolved casino heist from several years ago. Also, Pride meets a family member he never knew existed.

NCIS investigates the disappearance of a Navy entomologist after a deadly shooting at a research lab. Nero, with Naval Intelligence, joins the investigation when the team discovers a rare and deadly virus was also stolen.

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.