The NCIS team searches for Gibbs after the wreckage from his boat is discovered. The investigation reveals his work on the serial killer case with Marcie. Torres looks for answers after Bishop's departure.
Gibbs and Parker go on a road trip to find one of the serial killer's victims. Also, Agent Knight goes undercover at a large manufacturing company with ties to the murders.
The path leads to Alaska, where Gibbs and McGee go on a very long road trip. It's still all about getting information on the serial killer, Paul Lemere.
When a hotshot financial advisor is found shot at a naval station, NCIS investigates the case by interviewing the victim's three-dimensional hologram of herself, which she created before her death.
After a civilian research vessel in the North Atlantic picks up a small boat of wounded Navy officers, NCIS arrives on the ship and is forced to hide after discovering terrorists on board.
When the body of a Navy lieutenant is discovered, the team discover the victim was in possession of highly classified secrets, which have gone missing.
Investigating the death of an intruder at Quantico, Jimmy and Kasie are exposed to a deadly bio-toxin. The NCIS team calls on Doctor Carol Wilson for help as they race to find the antidote. Torres tries to distract Jimmy's daughter, who came to spend the day with her dad.
As NCIS investigates the cause of death of a reservist Navy Seal surgeon, they're forced to bring Vance's daughter, Kayla, who recently trained with NCIS, to help with a highly dangerous mission.
A gruesome mishap at a Navy petty officer's gender-reveal party leads NCIS to the case of a missing teacher that was popularized on a true crime podcast.
NCIS investigates the apparent suicide of a retired Navy officer who was in Palmer and Knight's grief group. Torres gets a call from Tennant to come to Hawaii when she gets a lead on a witness from a case they worked on together.
When an infamous arms dealer, Reymundo Diaz, is released from prison and bodies start piling up, Torres is forced to face the repercussions of his actions during an undercover operation he worked on years ago.
NCIS investigates a ring of clever teenage partygoers when a string of break-ins takes place at Marine Base Quantico. While working the case, Special Agent McGee forms a bond with one of the teens, Teagan Fields.
The NCIS team investigates the unexpected death of a Navy reservist who was working on a Deputy Attorney General's investigation. Also, Knight and Jimmy's budding romance is put on hold when a vital liver transfer goes fatally wrong.
