Plot Synopsis

Narrated by Rocky Carroll, star of NCIS, this investigative series gives viewers unprecedented access to some of the biggest cases handled by the real-life Naval Criminal Investigative Service. Titled 48 HOURS: NCIS for its first two seasons, this series introduces the agents that have worked on some of the agency's most significant investigations, who reveal, step-by-step, how they track killers, crack fraud cases, and how they hunt terrorists using street smarts and technology. In the premiere broadcast, agents reveal the investigation of the 1996 deaths of Elise Makdessi and Quincy Brown, both Navy petty officers stationed at the Oceana Naval Air Station, and both found dead in a Virginia Beach apartment. Elise's husband, Eddie Makdessi, told police the couple returned home and were accosted by Brown. Eddie Makdessi said Brown sexually assaulted and stabbed his wife, before he was able to grab a gun and shoot Brown dead.

Season 2 premiered on Tuesday, May 22, 2018 at 10pm ET/PT on CBS. The new season explores a range of intriguing investigations, including one that takes agents into the dark world of master and slave role-playing. Agents also reveal the techniques they used to bring to justice a serial rapist, show how they tracked a killer in the reinvestigation of a cold case, and go step-by-step into a twisted case where the victim was lured to his death by a killer in a case of mistaken identity. The series also focuses on the unique relationship between NCIS agents and local and other law enforcement agencies, as they worked together in their search of the truth. In the series premiere, NCIS agents detail the hunt for a serial rapist in Jacksonville, N.C., who appeared to be targeting women with military connections. Five of them were spouses of Marines and Navy personnel attached to Camp Lejeune. NCIS formed a joint task force with the Jacksonville Police Department, who were able to connect the attacks. The rapist left behind few clues, and it wasn't until two victims were attacked on the same night that investigators were able to get their first major leads. With the help of those two victims, the task force was able to apprehend him before he could strike again.
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This series returned for a third season on Wednesday, May 29, 2019 from 9-11pm ET/PT on CBS with a new title: NCIS: THE CASES THEY CAN'T FORGET. Still hosted by Rocky Carroll, this series continues to introduce viewers to the agents who have worked on some of the agency's most significant investigations and extraordinary missions, and reveal step-by-step, how they track killers, crack fraud cases, and how they hunt terrorists using street smarts and technology. The third season opens with back-to-back new episodes:

"Roadmap to Murder" (9pm): NCIS agents take viewers inside the mysterious case of Cory Allen Voss, a young Navy communications officer murdered after using an ATM in Virginia. The investigation -- a collaboration with the Newport News Police Department -- would lead the agents on a trail of twisted relationships, lies and secret double-lives. That trail would lead to a hospital, where two of the suspects met as they served as medical guinea pigs testing drugs. Investigators would spend months listening to wire taps and conduct around-the-clock surveillance of their suspects. Eight months after Voss was killed, two men and a woman were arrested and charged with murder.

"Heartless" (10pm): NCIS agents reveal the challenging detective work that went into cracking the unusual and calculated murder of Lt. Lee Hartley, who fell mysteriously ill while serving aboard the USS Forrestal while deployed in the Mediterranean. Hartley's illness baffled doctors, and he was airlifted to a Naval hospital in Mayport, Fla. His new bride, Pamela, was beside her husband the whole time. Months after he fell ill, Hartley died. An autopsy would later reveal he died of acute arsenic poisoning. How did that happen? Investigators, as routine, turned to his new wife as a possible suspect. But toxicology indicated Hartley was poisoned while on duty aboard the Forrestal, with 6,000 potential suspects. The case went cold after a year. Then, nearly 13 years after Hartley died, the NCIS cold case squad reopened the old casefile. Dozens of potential witnesses, family and friends were re-interviewed before agents would close in on a suspect, with an unusual motive.