NCIS: The Cases They Can't Forget

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?

NCIS agents face a tough investigation into one of their own after a young mother, the girlfriend of a Navy petty officer, vanishes.

Seventeen sailors killed in a terrorist attack, a Navy contractor who wanted to sell secrets, and two hackers who stole 220,000 U.S. military personal records -- the cases the agents of NCIS can't forget.

Two dead, one of them a beautiful Navy sailor. Why does this case still haunt the agents who hunted the killer?

The cases they can't forget: NCIS agents in Virginia go high-tech to solve the murder of a young ballerina - and the agent who inspired CBS' "NCIS: New Orleans" shares his real-life cross-country search for the killer in a San Diego cold case.

Can a videotape left behind by a dead soldier help real-life NCIS investigators solve a double murder?