The NCIS team partners with several federal agencies to track a sniper who is targeting crowded events in the city. Also, FBI Special Agent Tammy Gregorio arrives to investigate Pride and his team.

The team has to deal with FBI interference while searching for the perpetrator of a mass shooting at a poker game. Pride finds evidence that a friend was present, but has since disappeared. Is Elvis dead, or is he a cold blooded killer?

The team and Grigorio investigate the violent and confusing death of a sailor at a basketball stadium. The victim had no reason to be there, and no-one had any reason to kill him, but Patton finds and important lead.

Sebastian is kidnapped during breakfast with his Mother and forced to use his gaming skills to assist in a prison break.

Pride and his team investigate the crash of a private plane in a bayou, while LaSalle and Percy interview potential replacements for Brody.

The NCIS team reviews unorthodox training exercises after a Navy Seal candidate is found murdered weeks before his graduation. Also, a concerned Wade turns to Pride after her adopted son, Danny, announces his plan to enter the Navy.

The team investigates a sailor's murder during a rowdy motorcycle rally. Meanwhile, Lasalle asks for advice about his personal life from Gregorio.

Pride takes temporary custody of a 9-year-old boy who's the sole witness to the murder of his aunt - a member of the United States Navy Band.

Foul play is suspected when a Marine corporal who is an amateur race car driver has a fatal crash on the track.

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

During a murder investigation, Pride gets trapped on an oil rig that's about to explode due to a gas leak.

McGee and Torres come to New Orleans to help Pride and his team search for a missing homeland security theoretical terror playbook.

Loretta is deeply upset when she arrives at a crime scene and recognises not only the murder victim, but the horrific MO. The murder takes Loretta back to a dark time in her life, and suggests she might be next on the killer's list.

Pride's longtime friend, state and military attorney Rita Devereaux, asks NCIS to investigate the disappearance of a JAG lawyer who specializes in classified cases and volunteers at a private military academy.

The team searches for a Marine who assaulted six men in a bar.

Tammy reunites with her ex-husband, who not only embezzled millions in Katrina relief funds, but is also connected to the murder of a crime boss' son.

The team races to find an antidote for a super virus.

LaSalle's old Vice partner is the prime suspect when a link is discovered between the New Orleans police department and an international drug ring.

The team investigate a confounding weapons heist. Pride has to make a difficult decision about the Hamilton investigation.

Pride thinks he's found a new link between Mayor Hamilton and the illegal activity in Clearwater when a Navy Chaplain is murdered.

After Pride is spotted tracking one of Mayor Hamilton's accomplices, the suspect opens fire on a crowded street before disappearing.