Due to the rich history of the flagship series, conclusions exist about the fate of Leroy Jethro Gibbs and Mike Franks’ original NIS team in NCIS. The franchise’s most recent spinoff explores the backstory of Agent in Charge Gibbs, bringing conversations about his former colleagues back into orbit with NCIS: Origins. The show revives critical figures from Gibbs’ background, such as Mike Franks and Vera Strickland. The NCIS: Origins cast also brings connections from Gibbs’ narrative out of the shadows, introducing new characters whose involvement bolsters the story of what happened to Gibbs’ wife and daughter in NCIS.

https://screenrant.com/what-happened-to-gibbs-original-nis-team-in-ncis/