Mark Harmon filmed footage for an NCIS show and it's not the flagship!

For years, fans of the NCIS franchise have been hoping that Mark Harmon would make an appearance on the show that started it all. Well, he will finally be on camera! However, it won’t be for the flagship series as fans have wanted since he left in NCIS season 19.

NCIS: Origins is the highly anticipated new prequel series that will focus on a young Leroy Jethro Gibbs as he begins working at what was then known as the Naval Investigative Service. Even though the story takes place over a decade before the events of NCIS, it was believed Harmon would most likely just take a backseat.

However, Deadline reports David J. North, a co-runner of the show, had talked to Harmon alongside Gina Monreal about showing footage of older Gibbs for the series. So he will be making an appearance in the premiere episode, even if it is for a brief period.

Harmon serves as an executive producer of the series and will narrate the series. “We are focusing on him telling the story of 1991,” North pointed out. He also confirmed that they were “open” to the possibility of Harmon making another appearance.

While Harmon has taken a backseat when it comes to what has been happening in the NCIS franchise, it will be exciting to see him on screen, no matter how we see him. Even though it won't be current Gibbs on the original flagship series, it will still bring him back in another capacity for devoted fans.

Young Gibbs is played by actor Austin Stowell and we will also see the younger version of his boss and mentor Mike Franks. In the prequel, Gibbs isn’t the hardened agent who keeps to himself as we know him in his older years.

He's had to learn to hold back his emotions to be who he would eventually become over the years. He will be an entirely new Gibbs we have yet to see and we're looking forward to how Stowell brings him to life in his own way.

The official trailer for NCIS: Origins does show a brief shot of Harmon, but it is unknown if this is archived footage or part of the new shots taken for the premiere episode.

How will older Gibbs play into the premiere? It is possible that we could see an older Gibbs as he looks back on his beginnings in working for NIS. Could he be writing a memoir? There are so many possible ways we could see him appear in the premiere and we cannot wait! Perhaps we might even, as North suggested, see him appear on the show at another point in time.

NCIS: Origins will premiere Monday, Oct. 14 at 9/8c on CBS before moving into its normal timeslot of 10/9c on Oct. 21.