NCIS 16x20 Promo Trailer Hail & Farewell<br />Hail & Farewell is the 20th episode of NCIS Season 16 and also the 374th episode of the entire NCIS series.<br />NCIS investigates the murder of a Marine Major believed to have been killed in the 9/11 attack on the Pentagon after human remains are discovered at a construction site with a personal history with the victim soon driving Gibbs to solve her crime.
