A Marine’s murder has connections to a dirt bike gang that Torres joined while on an old undercover operation.

A gunnery sergeant’s murder in a national park lead the team to join forces with the mounted police. While investigating the clues, they uncover a disturbing smuggling ring.

The team suspects foul play when a healthy, young petty officer mysteriously dies in his sleep aboard a Navy destroyer. Wedding stress reaches its peak for McGee and his fiancée.

When a Navy SEAL vanishes during an unsanctioned trip, Gibbs, McGee and Torres travel to an unpopulated area in Paraguay that’s teeming with violent rebels.

A vice admiral tasks McGee with tracking down the hackers who infected his laptop with ransomware before the virus wipes out all his data. The cyberterrorism escalates when the virus…

After the NCIS team tracks evidence from the murder of a Navy captain to Ducky’s deceased mother, Ducky looks back and questions a pivotal life choice he made 37 years…

NCIS searches for new leads after an undercover operation to apprehend a businessman who uses acts of terror to manipulate the stock market is compromised. Also, Bishop and Qasim find…

When Gibbs spots the brother of an “NCIS Most Wanted” suspect, he takes the opportunity to assume his former alias and go undercover with their infamous anti-government militia. This leaves…

During an NCIS hit-and-run investigation, Palmer joins a stranger on the outside ledge of a building in an attempt to save his life.

The murder of a Petty Officer in a small town outside D.C. prompts NCIS to once again work with “The Sherlocks,” a privately funded investigative team that includes their newest…

After Abby’s homeland security think tank is compromised and she is found in possession of a real bomb, the NCIS team discovers the leader of the group has been murdered…

Bishop is more determined than ever to seek revenge for the murder of Qasim, her late boyfriend, after Gibbs and the team find a new lead in the Chen case….

McGee discovers his apartment has been torn apart by a robber trying to locate an item of great value hidden somewhere by the convicted criminal who previously owned the unit….

To carry out a sailor’s dying wish, Gibbs and the NCIS team reinvestigate a murder case that was originally ruled an accidental death. Also, the case reminds Torres of a…

The team must rely on an irritable Vietnam War veteran to solve a Marine’s murder.

When a missing MI6 Officer is linked to a murdered petty officer, Gibbs sends Quinn and Bishop to Philadelphia to work with MI6 Officer Clayton Reeves. Also, Quinn painfully recounts…

After a kidnapped petty officer escapes her captor, NCIS uncovers a connection to her missing husband. Also, Abby knits the NCIS newbies personalized gifts.

Torres boldly breaks protocol when he learns a witness in an NCIS case is wanted by U.S. Immigration and Customs Enforcement. Also, Abby, Bishop and McGee woo landlord Tony DiNozzo…

After NCIS Agent Bishop is sent to Gitmo to gather evidence for a Navy chaplain murder case, she questions her previous work at the NSA. Also, Bishop’s brothers, John and…

The NCIS team investigates a series of escalating threats against congresswoman Jenna Flemming, while Director Vance oversees her temporary protection detail.

The NCIS team investigates a deadly car explosion in D.C. that connects to NCIS Special Agent Nicholas “Nick” Torres, who disappeared six months ago while on a deep undercover assignment…

NCIS uncovers a bomb plot and a long-running theft ring while investigating a death at a Quantico reunion. Also Torres and Quinn adjust to life on Gibbs’ team, including new…

When the NCIS team investigates a marine sergeant’s tragic fall from a building, her doctor, Grace Confalone, confides in Gibbs and suggests he treat it as a murder investigation. Also,…

After the body of a navy lieutenant is discovered aboard a destroyer during a tiger cruise, when civilian guests are allowed to spend the night on the ship, Gibbs, Quinn…