NCIS: The Cases They Can't Forget - Episode Guide

The investigation into the 1996 deaths of two Navy petty officers stationed at the Oceana Naval Air Station.

D'Wayne Swear, a former NCIS agent who inspired ``NCIS: New Orleans,'' takes viewers inside the real-life, cross-country search for the person who killed a young woman in San Diego.

The investigation into the 2001 execution-style murders of a Navy sailor and her friend.

Agents open up about their emotions, fears, frustrations and successes in solving investigations that have national and international impact.

After a young mother, the girlfriend of a Navy sailor, vanishes, NCIS agents face a difficult investigation into one of their own that will challenge them on every level.

A tattooed NCIS agent with a black belt goes undercover to find the killer of a Navy petty officer -- can he get what he needs without getting caught?

When a serial rapist targets military spouses, NCIS agents race against time before he strikes again.

When a young Navy officer vanished without a trace along with $8,600 from a supply ship during the Vietnam War, he was classified a deserter. His sister believed he was murdered. Can NCIS agents solve a nearly four decades old cold case?

The search for a young missing military wife takes NCIS agents into the dark world of master and slave role playing where they uncover the dual life of a Marine sergeant. Narrated by CBS' "NCIS" actor Rocky Carroll.

When a young military wife at the Marine Combat Base at Twentynine Palms, Calif. vanishes in the desert, NCIS agents discover she has a secret -- did it lead to murder?

Did a duplicitous online love affair between two people who never met lead to an innocent Marine being murdered?

When a Fort Bragg nurse fails to show up for work, worried friends rush to her apartment only to find her home burned and their friend missing.

NCIS agents take viewers inside the mysterious case of a young Navy officer murdered after using an ATM. The investigation would lead the agents on a trail of greed, lies and double-lives.

A Navy lieutenant's mysterious illness aboard the USS Forrestal leads to his death. Investigators say he was poisoned -- after 13 years, the trail leads to a suspect with an unusual motive for murder.

Naval Criminal Investigative Service agents bring viewers inside the investigation into the attack on a marine stationed in Kuwait that at first looked like a terrorist attack, but led them on an unexpected trail to something else.

Real-life NCIS agents investigate the murders of a Marine sergeant and his wife 67 days after they wed. Was the motive money, was it racially motivated or was it something else?

Real-life NCIS agents team up with Air Force investigators to solve the murder of an American airman in Japan, leading to a dark, twisted path of deception, fraud and witchcraft.

The convicted killer of a young Florida mom speaks out for the first time and admits he didn't tell investigators everything – but vows he didn't kill her. Is he telling the truth now?

Real-life NCIS agents open up about the murder of a sailor's 10-year-old daughter that haunted the agency for three decades and the "unsolvable" murder of a Navy man's son and the promise to his family to resolve the case.