NCIS 16×19 Promo “Perennial” Season 16 Episode 19 Promo

NCIS 16×19 “Perennial” Season 16 Episode 19 Promo – Following an active shooter lockdown at a naval hospital, the NCIS team searches for a suspect who fled the scene. Also, someone from Sloane’s past was inside the hospital and is a key witness in the case, on NCIS, Tuesday, April 9th on CBS.