"The Enemy Within" -- The NCIS team searches for a home-grown terrorist after a rescue mission in Syria reveals an American was involved in the capture of a social worke, on NCIS, Tuesday, Jan. 13 (8:00-9:00, ET/PT), on the CBS Television Network. Pictured left to right: Mark Harmon, Joe Spano and Sean Murray Photo: Patrick McElhenney/CBS ÃÂ©2014 CBS Broadcasting, Inc. All Rights Reserved | Episode 12.12 - The Enemy Within | Promotional Episode Photos | Season 12 | ncis | Gallery

SpoilerTV Image Archive | Gallery | ncis | Season 12 | Promotional Episode Photos | Episode 12.12 - The Enemy Within | "The Enemy Within" -- The NCIS team searches for a home-grown terrorist after a rescue mission in Syria reveals an American was involved in the capture of a social worke, on NCIS, Tuesday, Jan. 13 (8:00-9:00, ET/PT), on the CBS Television Network. Pictured left to right: Mark Harmon, Joe Spano and Sean Murray Photo: Patrick McElhenney/CBS ÃÂ©2014 CBS Broadcasting, Inc. All Rights Reserved

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