NCIS “Enemy on the Hill” Season 9 Episode 4 October 11, 2011 NCIS, News NCIS “Enemy on the Hill” Season 9 Episode 4 airs Tuesday October 11 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Episode Synopsis: The NCIS team searches for the person and motive behind a contract killer targeting a Navy Lieutenant Commander. Meanwhile, Abby uncovers new information about her family after undergoing tests for a kidney donation, on NCIS, Tuesday, Oct. 11 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Click Any Photo Below To Enlarge Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)