Along with the late David McCallum, Mark Harmon is arguably the actor who's most commonly associated with the "NCIS" ...

NCIS: Origins episodes 4 and 10, titled All's Not Lost and Blue Bayou, offer a candid look at the aftermath of the tragic day ...

Rule 4 — “The best way to keep a secret: Keep it to yourself. Second best: Tell one person—if you must. There is no third ...

NCIS: Origins has been a valiant effort to reinvent the NCIS franchise through the lens of a young Leroy Jethro Gibbs, but ...

Longtime NCIS fans know that Leroy Jethro Gibbs got his revenge on Reynosa cartel member Pedro Hernandez by killing the man who killed his wife and daughter, but the how it came about part of it ...

NCIS is a procedural drama that follows a team of investigators in the U.S. Navy and Marine Corps. Here's where you can watch ...

You know these stars as members of the Naval Criminal Investigative Service, who spend their time investigating crimes ...

In this NCIS prequel’s emotional midseason finale (new episodes return January 27) the heartbroken rookie NIS agent Leroy Jethro Gibbs (Austin Stowell) faces the first Christmas without his wife and ...

NCIS showrunner Don Bellisario was initially hesitant to cast Mark Harmon as Leroy Jethro Gibbs, but was eventually convinced ...

We’re learning how he picked himself up. We’re learning how he built the foundation of a fortress that is Leroy Jethro Gibbs, standing in the river in Alaska. That to me is a real gift to ...