The journey continues with North signing a new overall deal with CBS Studios. He, the co-creator of “NCIS: Origins,” will stay on as showrunner through the already-renewed third season, while his co-creator, Gina Lucita Monreal, will exit after Season 2.The prequel explores the early years of a young Leroy Jethro Gibbs, played by Austin Stowell, tracing the formative moments of the character originally portrayed by Mark Harmon. Both Harmon and Sean Harmon serve as executive producers alongside North.North’s connection to the NCIS franchise began in its first season, when he joined as support staff. Over the years, he rose through the ranks, worked on multiple other dramas, and ultimately returned to help shape the next chapter of Gibbs’ story.“NCIS: Origins” returns to air on March 3.