Mark Harmon’s Gibbs is back in the first trailer for "NCIS: Origins” Season 3, exclusively debuted by USA TODAY, premiering ...

"Just when I thought I was out, they pull me back in," Mark Harmon says in "NCIS: Origins" return as Gibbs in the first ...

Mark Harmon has never been the kind of star to get too worked about anything. The famously laconic actor, who just turned 75, ...

Origins Season 3 trailer, which sees Mark Harmon's Gibbs getting out of Alaska and returning to his old stomping grounds — ...

This is so special!

With Harmon back in the fold in front of the camera, there's already a lot to look forward to in NCIS: Origins Season 3. We ...

Plus, see what happens between Gibbs and Lala in the '90s timeline after that kiss.

Jethro Gibbs was the most irreplaceable character in NCIS, and without Mark Harmon, it's a completely different show.

Five years after he left NCIS, Mark Harmon returns as Leroy Jethro Gibbs for a special season-long, 10-episode arc on prequel ...

From St Elsewhere to Chicago Hope, and most famously as Leroy Jethro Gibbs on NCIS, audiences have been watching Mark Harmon ...

EXCLUSIVE: CBS’ NCIS: Origins is heading to the ’90s with the return of Mark Harmon as Leroy Jethro Gibbs for a season-long arc beginning with the show’s premiere on Tuesday, October 6 at 10 p.m.

Mark Harmon had a 'serious' relationship with actress Cristina Raines years before meeting the love of his life.