第 19 季 共 21 集
播出时间：2021年9月21日
第 1 集 Blood in the Water
播出时间：2021年9月21日
As the NCIS team searches for Gibbs after wreckage from his boat is discovered, they find out he was tracking a serial killer with journalist Marcie Warren, who wrote an exposé on him.
第 2 集 Nearly Departed
播出时间：2021年9月28日
While trying to find the serial killer Gibbs was after, the NCIS team discovers another person has been tracking the case as well.
第 3 集 Road to Nowhere
播出时间：2021年10月5日
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.
第 4 集 Great Wide Open
播出时间：2021年10月12日
Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.
第 5 集 Face the Strange
播出时间：2021年10月19日
The NCIS team investigates the death of a Navy commander whose body suddenly explodes before Jimmy can examine it.
第 6 集 False Start
播出时间：2021年11月2日
NCIS investigates the death of a beloved Navy commander who trained some of the top athletes in the country.
第 7 集 Docked
播出时间：2021年11月9日
NCIS investigates the death of a man on a cruise ship whose body is discovered in the ship's sauna by none other than McGee's mother-in-law, Judy.
第 8 集 Peacekeeper
播出时间：2021年11月30日
NCIS investigates the case of a Navy reservist whose body is found in a beat-up car at the end of a gun range. Kasie weighs the pros and cons of buying a gun.
第 9 集 Collective Memory
播出时间：2021年12月7日
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.
第 10 集 Pledge of Allegiance
播出时间：2022年1月4日
NCIS is called in when Navy Chief Warrant Officer Rafi Nazar is suspected of trying to sell stolen classified Navy software used to pilot combat drones.
第 11 集 All Hands
播出时间：2022年1月18日
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. Also, Agent Knight takes a paper doll with her on the mission to capture photos for her niece’s grade school class.
第 12 集 Fight or Flight
播出时间：2022年1月25日
When the body of a Navy lieutenant is discovered missing an eye, the NCIS investigation leads to the world of cage fighting.
第 13 集 The Helpers
播出时间：2022年3月1日
While investigating the death of an intruder at Quantico, Jimmy and Kasie are exposed to a deadly biotoxin; the NCIS team calls on Dr. Carol Wilson for help as they race to find the antidote; Torres tries to distract Jimmy's daughter.
第 14 集 First Steps
播出时间：2022年3月8日
As NCIS investigates the cause of death of a reservist Navy SEAL surgeon, they're forced to bring Vance's daughter to help with a highly dangerous mission.
第 15 集 Thick As Thieves
播出时间：2022年3月15日
Parker’s delinquent past resurfaces when NCIS is called to Philadelphia to investigate the death of a Navy petty officer.
第 16 集 The Wake
播出时间：2022年3月22日
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.
第 17 集 Starting Over (I)
播出时间：2022年3月29日
NCIS investigates the apparent suicide of a retired Navy officer who was in Palmer and Knight's grief group; Torres gets a call from NCIS Special Agent Jane Tennant to come to Hawai'i.
第 18 集 Last Dance
播出时间：2022年4月19日
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.
第 19 集 The Brat Pack
播出时间：2022年5月3日
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.
第 20 集 All or Nothing
播出时间：2022年5月17日
NCIS investigates the unexpected death of a Navy reservist who was an investigative journalist. Also, Knight and Jimmy’s budding romance is put on hold when a vital organ transfer goes fatally wrong.
第 21 集 Birds of a Feather
播出时间：2022年5月24日
When Agent Parker is framed for murder, the team puts their jobs and lives on the line to buy time and uncover the truth.
