NCIS 21x07 "A Thousand Yards" Season 21 Episode 7 Trailer - NCIS comes under attack by a mysterious enemy from the past. Also, Vance tries to mend fences with his estranged son by explaining why, despite the ongoing dangers of his job, he still chooses to stay at NCIS, on the CBS Original series NCIS, Monday, April 15th on CBS, and streaming on Paramount+ (live and on-demand for Paramount+ with SHOWTIME subscribers, or on-demand for Paramount+ Essential subscribers the day after the episode airs)* Episode marks the 1,000th episode of the NCIS franchise. Daniela Ruah (NCIS: LOS ANGELES) and Vanessa Lachey (NCIS: HAWAI’I) make a special appearance.