NCIS: Hawaiʻi

An experimental Navy plane crashes on Oahu, prompting Tennant and her team to investigate its origins and prevent sensitive information from being revealed.

Tennant and NCIS work to stop a group of international thieves who are using WWII-era explosives to target armored trucks ahead of their planned final heist. Meanwhile, Kai looks for a new residence, Lucy and Whistler confront each other about a past incident, and Ernie faces a more dangerous situation in the field than anticipated.

Kai investigates the murder of a petty officer who was working to guide at-risk youth toward careers in the Marines by going undercover with one of Hawai'i's oldest surf gangs.

A marine is shot and claims it was an accident involving a hunter, but the team uncovers inconsistencies in his story. They discover drugs linked to his son, who may have been coerced into working for a drug ring, prompting the team to track down both father and son as they face increasing danger. Meanwhile, Kai must set aside personal emotions to assist his injured father.

An NCIS investigation begins after a Japanese sailor is murdered in the United States, with clues connecting the case to the earlier death of his girlfriend in Japan, prompting concerns that a diplomatic incident may arise if the wrong suspect is identified.

Tennant and NCIS investigate the kidnapping of a well-known, internationally active social media influencer, uncovering discrepancies between her public persona and reality, while also dealing with tensions caused by Whistler's conflicting objectives.

A Navy petty officer is found murdered, and Jane Rizzoli and her team launch an investigation while also safeguarding the victim's friend and coworker.

An anti-capitalist protester is found murdered, leading Jane and her team into a conflict between eco-activists and a tech billionaire over a disputed piece of land, while Jane also shares a date with Captain Joe.

On the 80th anniversary of the Pearl Harbor attack, the NCIS team examines a set of World War II-era bones, only to discover they belong to a person who survived the attack and is still alive.

NCIS collaborates with Whistler's team after discovering a shipment of illegal weapons in a shipping container. Meanwhile, Tennant faces a difficult decision when considering the arrest of Alex's friend's father, which could force the friend to relocate.

Lucy goes undercover at an underground poker tournament to uncover which high-stakes player is responsible for stealing evidence needed to convict a drug kingpin. Meanwhile, she struggles with her emotions as Whistler's ex-girlfriend returns to town.

An NCIS team investigates the death of Navy engineer Joseph Chan and discovers his recently kidnapped colleague, Maggie Shaw, may hold key information. Meanwhile, David Sola, a New Zealand intelligence officer, arrives in Hawai‘i to pursue a lead linking Chan's death to a covert Chinese operative.

Jane delves into the mystery of Maggie's disappearance, uncovering a startling revelation that prompts her to collaborate with her team and Whistler to verify her suspicions.

Jane is interrogated after Maggie Shaw's arrest, while the team looks into a case involving Marines with ear canal injuries caused by a weapon emitting ultrasonic waves. Ernie consults his friend, Dr. Tony Lee, to determine who might have had access to the classified weapon.

Jesse is sailing with his daughter when their yacht is suddenly attacked by pirates who take everyone hostage. Injured in the assault, Jesse must rely on his team to locate the yacht and rescue his daughter before it's too late.

Kai assumes a chef's role at a local restaurant to investigate a criminal kingpin believed to have ties to the establishment. Meanwhile, Jane learns that Alex has secretly received a baseball scholarship from a mainland school.

A ransomware attack disrupts a dam's operations, prompting Ernie and a group of hackers to race against time to prevent a total shutdown of the island's power and water supply. Meanwhile, Lucy and Whistler collaborate, allowing Whistler an opportunity to reconcile with Lucy.

NCIS Agents Nick Torres and Jessica Knight go to Hawai'i after discovering that a key witness from a past case has surfaced with potentially important evidence.

The NCIS team investigates a wrecked ship carrying exotic animals that pose a threat to Oahu's native wildlife. Meanwhile, Alex suffers a serious injury that may end her career, and Kai asks Melanie, a fish and wildlife agent, on a date.

An NCIS team investigates the murder of a navy seaman while on their day off. Meanwhile, Lucy learns that Whistler declined a promotion in D.C. to remain in Hawai'i.

Captain Milius recruits Jane as his personal security escort for a covert prisoner exchange mission in the Philippines, returning to Hawai'i to coordinate the operation.

Captain Milius collaborates with Tennant and her team following a high-stakes prisoner exchange between the U.S. and Eastern Europe. Meanwhile, Whistler acts on Ernie's suggestion by making a bold move to rekindle his relationship with Lucy.

Tennant's team collaborates with NCIS agents Nick Torres and Jessica Knight to locate The Raven, who has set his sights on attacking RIMPAC, a major international maritime exercise held in the Pacific.

An NCIS investigation into the death of a Marine staff sergeant leads the team into the underground world of illegal street racing. Meanwhile, Tennant suspects Alex is keeping secrets, and Whistler feels nervous about introducing Lucy to the team.

Tennant and the NCIS team investigate a Navy officer's fatal car crash, uncovering that he is an imposter. Meanwhile, Whistler goes undercover to uncover the truth but puts herself in jeopardy.

A Navy sailor is found dead in a restricted sacred area, prompting the NCIS team to collaborate with CGIS Special Agent Pike to investigate a potential serial killer. Meanwhile, Tennant meets Alex's new girlfriend.

The NCIS team probes the death of a Navy sailor, encountering resistance from a powerful local crime syndicate. Meanwhile, Lucy begins searching for a new place to live.

An NCIS investigation begins after a Marine corporal dies from a fentanyl overdose near a tide pool. Meanwhile, Alex discusses taking a gap year with his parents, and Ernie shares a personal update with Lucy.

An NCIS investigation begins after a young boy's mother disappears, leading the team to discover they are not the only ones looking for her.

An NCIS investigation into the murder of a naval officer turned community theater actor leads the team to bring in an experienced ally in pursuit of a dangerous international criminal. Meanwhile, Kai asks Whistler to help investigate a former friend who has turned to a life of crime.

Commander Chase is taken hostage by an Army Ranger wanted for murder, forcing the NCIS team to launch an urgent investigation to locate both her and the suspect.

Tennant, Jimmy Palmer, and Sam Hanna are captured along with a woman who identifies herself as a CIA agent seeking intelligence from the team. Meanwhile, Jesse, Ernie, Whistler, and Alden Parker investigate an asset who recently arrived in Hawai’i and may be linked to a series of international assassinations.

Special Agent Pike is ambushed during an undercover operation with a Japanese crime family, prompting the team to investigate who is behind the attack. Meanwhile, Kai continues his probe into a former friend who has turned to a life of crime.

An elite Marine captain is found dead, and the NCIS team must investigate to determine the circumstances behind his murder and identify the person responsible.

After a meth lab explosion puts them in danger, the NCIS team investigates as Kai becomes a target of an old friend turned criminal, while Lucy handles her first major assignment on an aircraft carrier.

An NCIS investigation into the murder of a captain and his wife reveals unsettling similarities to a past case, prompting the team to consult a former member to determine whether a copycat is involved.

A Navy deserter's unexpected emergence from hiding puts his family in danger, prompting NCIS and Charlie 1 to uncover who is threatening them. At the same time, Lucy returns to Hawai'i earlier than expected from her assignment at sea.

Navy personnel report vehicle break-ins, prompting the NCIS team to investigate a string of odd crimes and pursue a surprising suspect. Meanwhile, Whistler faces challenges with an uncooperative confidential informant, and Alex considers his future college choices.

Captain Milius returns to Hawai’i as the NCIS team investigates a high-stakes case involving a dangerous U.S. Government target, aided by an unconventional informant. Meanwhile, Tennant and Daniel navigate the personal implications of Alex's acceptance into the Naval Academy.

Tennant interrogates a suspect while en route by helicopter, but when the aircraft crashes, she must rely on her resourcefulness to survive and rescue the other passengers.

Following the unexplained death of an astronaut during a classified Mars simulation, the NCIS team deploys Ernie to investigate inside the isolated habitat without backup.

During a night shift, Lucy gets an unusual phone call from a man confessing to a murder, prompting the NCIS team to launch an investigation to locate him.

A dead MI6 agent brings buried secrets from Tennant's past to light, compelling her to take drastic measures to uncover the truth and identify those responsible.

A former associate from Agent Tennant's CIA days resurfaces, prompting the NCIS team to enlist unexpected assistance in tracking down a murderer who jeopardizes Tennant's career and reputation.

Tennant completes her medical and psychological evaluations and is unexpectedly interviewed by Sam as part of her clearance to return to duty. Meanwhile, the team uncovers a security breach in the U.S. Marshal's database, prompting Sam and Tennant to travel to Las Vegas to track down the hacker.

After a prisoner transport plane crashes on a remote island, the NCIS team investigates and searches for escaped convicts. At the same time, Sam Hanna and his team work to locate a dangerous Russian fugitive known as "The Chemist.

An NCIS team investigates a daring daytime heist at a Navy Federal Credit Union, uncovering a crew of thrill-seeking criminals. At the same time, Agent Tennant begins to question the true motives behind Sam Hanna's presence in Hawai'i.

A Navy pilot is found dead at a military resort, prompting the team to go undercover and uncover a hidden criminal operation.

NCIS is called in to protect the daughter of a Russian oligarch who possesses a dangerous secret. At the same time, Sam requests a favor from Tennant.

The fiancée of a missing naval officer turns to NCIS for help, only to discover that his past holds secrets more complex than she imagined. At the same time, Sam enlists Kai as his partner in a new endeavor.

An NCIS team investigates the murder of a Marine during training on Hawaii's Big Island, leading them into the wilderness where they uncover a troubling revelation.

An NCIS investigation into the kidnapping of a Marine's wife reveals hidden dangers and complex secrets as the team works to locate her in time. Concurrently, Sam enlists Ernie's help to decode a computer program that could have serious consequences.

An NCIS investigation into the murder of a bioweapons expert at a secure facility in Hawai'i leads to a collaboration with the NCIS Elite team, uncovering a larger and more dangerous threat.

After surviving an ambush involving a deadly bioweapon, the NCIS team investigates to identify and stop the unknown terrorist group responsible before they launch another attack.