NCIS 20x17 "Stranger in a Strange Land" Season 20 Episode 17 Promo Trailer HD - NCIS works to solve the murder of a Marine private who appears to have been killed for helping an Afghan refugee. Also, Jimmy navigates the pressure of parenting his teenage daughter, who is eager to go out on an unchaperoned group date, on the CBS Original series NCIS, Monday, March 20th on CBS and available to stream live and on demand on Paramount+.