CBS has confirmed that NCIS: Origins will return for its third season on Tuesday, October 6, 2026, at 10 PM ET. The upcoming installment of the prequel series marks a major shift in storytelling, moving Mark Harmon from his role as a narrator into a full-time on-screen presence in every episode.
Season 3 will consist of 10 episodes. This format coincides with a significant leadership change behind the scenes. Following the departure of co-creator Gina Lucita Monreal, David J. North will serve as the sole showrunner for the third season.
Mark Harmon’s Dual-Timeline Return
While the series primarily focuses on the early career of Leroy Jethro Gibbs in the 1990s, Season 3 is effectively transitioning into a dual-timeline narrative. Mark Harmon is set to appear on-screen in every episode as the present-day Gibbs, featured in a parallel present-day mystery.
This present-day storyline is expected to tie back to his early days at Camp Pendleton. Rather than providing mere voiceover context, the “older” Gibbs will now lead a parallel plot that informs the events of the prequel timeline, offering a deeper look at the character’s legacy nearly two decades after the events of the main series.
Addressing the Lala Dominguez Mystery
The role of Special Agent Lala Dominguez remains a significant element of the franchise’s history. Despite her importance in the prequel’s narrative, Dominguez was never mentioned during Gibbs’ 19-season tenure on the flagship NCIS.
The series explores the emotional and professional fallout surrounding her character during the early years of the franchise. This focus examines her role in the agency’s history and the events of the prequel timeline that preceded the later years of the franchise.
Resolving the Season 2 Cliffhanger
Beyond the long-term canon mysteries, Season 3 must immediately address the immediate crisis left by the Season 2 finale. The previous season ended with the kidnapping of Special Agent Randy by unknown assailants, a development that left the fledgling NIS team in a state of emergency.
The premiere is expected to pick up directly following this abduction, testing the leadership of the younger Gibbs and the team’s cohesion during a period of institutional transition. As the agency moves through the rebranding from the NIS to the modern-day NCIS, these high-stakes cases are expected to define the evolution of the unit’s investigative style.
