The NCIS team uncovers a mole in the ranks while working with the Department of Homeland Security to locate 900 missing pounds of explosives that pose an imminent threat to New Orleans.

A Navy Lieutenant Commander in impeccable shape turns to Pride and the NCIS team to solve his imminent murder after discovering he has been poisoned with a lethal dose of radiation.

To send a message to Pride, Baitfish murders someone close to the NCIS team, prompting a citywide manhunt for the elusive criminal.

The murder of a Marine provides new clues in the first case Pride and Lasalle ever worked together, just before Hurricane Katrina struck the city and washed away any evidence. Also, the team celebrates Thanksgiving together in Pride’s bar.

The NCIS team discovers a surveillance van filled with photos documenting Special Agent Pride’s every move after his daughter Laurel is attacked on campus and placed in protective custody.

The NCIS team partners with Homeland Security after the murder of a Navy master diver is linked to chatter of a foreign attack on the city.

Sebastian is sent undercover and Patton exercises his former gambling skills, as Pride and the team attempt a dangerous operation to trap Garcia.

Unable to trust anyone in New Orleans, the NCIS team calls in FBI Assistant Director Isler to help expose and stop the sinister scheme Mayor Hamilton has planned for the residents of Clearwater. Season Finale.

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.

The NCIS team investigates a deadly explosion at the Navy-Marine Corps Relief Gala, and discover Pride was the intended target of the bomb.

The NCIS team tries to narrow down the motive when a Navy recruiter is murdered in a hit-and-run; Lasalle worries about his brother.

While conducting an autopsy on a Petty Officer who is believed to have died from natural causes, an armed man enters the morgue and holds Wade, Sebastian and Danny hostage.

The life of a genius Navy coder employed by Brody’s mother, Olivia Brody, hangs in the balance after the heart intended for his transplant is stolen. Olivia joins the NCIS team as they race to locate the missing organ.

When a mystery man saves the life of a Lieutenant and then disappears from the scene, the NCIS team unravels a new case when forensic evidence suggests he is a soldier who was captured in Afghanistan years ago and never found.

Agent Brody realizes that there is a connection between the case of a sailor hit by a party bus and the death of her sister.

The NCIS team must rescue one of their own after Sebastian is kidnapped while at a restaurant with his mother, Sylvia Lund, and forced to use his gaming skills in a prison break.

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

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.

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.

A stolen Navy-issue gun appears to belong to a petty officer who died 40 years ago, meaning the team have to re-open a cold case. The team celebrate Thanksgiving.

Pride is adamant the elusive “Baitfish” has returned and, in attempt to locate his nemesis, he has the team investigate crime scenes and chase leads from New Orleans to Charleston, SC.