NCIS: The Cases They Can't Forget

The Terrorists, The Spies, The Hackers (1x4)

Air date: May 31, 2017

A Navy contractor who wanted to sell secrets, two hackers who stole 220,000 U.S. military personal records and 17 sailors killed in a terrorist attack aboard the USS Cole. NCIS agents open up about their emotions, fears, frustrations and successes in solving investigations that have national and international impact - the cases they can't forget.