The prequel series will follow a young Gibbs as he starts his career as a newly minted special agent at the NCIS Camp Pendleton, with the younger versions of several characters making an appearance.

NCIS Origins is set to take fans on a nostalgic journey back to the 1990s, shortly after Gibbs left the Marines and embarked on his NCIS career. Mark Harmon, who played Agent Gibbs for an ...

NCIS Origins will transport fans back to the 1990s shortly after Gibbs left the Marines and launched his career at NCIS. Actor Mark Harmon sung his swan song in 2021, leaving his days as Agent ...

NCIS: ORIGINS follows a young Leroy Jethro Gibbs (Austin Stowell) in 1991, years prior to the events of NCIS, and is narrated by Mark Harmon. In the series, Gibbs starts his career as a newly minted ...

Agent Leroy Jethro Gibbs (played by Mark Harmon) had been somewhat of a mystery during his 18-year stint in NCIS before leaving the CBS police procedural to start a quieter life in Alaska.