NCIS is a CBS network show about a team of special agents from the Naval Criminal Investigative Service of the United States Navy and United States Marine Corps. Season 12 Episode 17: The Artful Dodger. An investigation into the murder of a Navy lieutenant reveals that a rare painting loaned to the scene of the crime is. On NCIS Season 12 Episode 24, after the shocking loss of one of their own, the team continues to investigate the terrorist group targeting kids on the season finale. TVGuide has every full episode so you can stay-up-to-date and watch your favorite show NCIS anytime, anywhere. Join the TV conversation about NCIS. Get the latest news and photos, post comments, play games, take our personality quizzes and more. 4.7/5.0 rating. See NCIS: Season 12 on the Amazon Movies and TV store. Great savings on a wide range of DVD, Blu-ray, and 3D-Bluray titles. The twelfth season of the police procedural drama NCIS premiered on September 23, 2014, in the same time slot as in the previous seasons, Tuesdays at 8 pm. Episodes Introductory episodes. The program and its characters are introduced during the eighth season of JAG. The JAG episodes, Ice Queen and Meltdown , served as. Watch NCIS Full Episodes Online. Instantly find any NCIS full episode available from all 13 seasons with videos, reviews, news and more! Starring; Rocky Carroll; Brian Dietzen; Mark Harmon; Pauley Perrette; David McCallum; Sean Murray; The NCIS cyber case turns into a united global effort after.