“Mark Harmon’s Explosive Revelation: He’s Penned a Tell-All Book on the Untold Secrets of NCIS! You Won’t Believe What He’s About to Expose!”

Former NCIS lead actor Mark Harmon has announced a new project: co-writing a book about the origins of the original NCIS.

On November 14, the actor who played Leroy Jethro Gibbs on the show from 2003 to 2021 will release “Ghosts of Honolulu: A Japanese Spy, A Japanese American Spy Hunter, and the Untold Story of Pearl Harbor.”

The book, co-written with tech advisor and former Special Agent Leon Carroll Jr., will tell the story of a World War II operation led by ONI, also known as the Office of Naval Intelligence – the predecessor to the Naval Criminal Investigative Service.

The book will recount the tale of Douglas Wada, the only Japanese-American agent working in naval intelligence at the time, and Takeo Yoshikawa, a spy sent to gather information on the United States for Japan.

According to the synopsis, the book will follow them both as they engage in “cat-and-mouse games” in the run-up to the war, specifically the tragic events of Pearl Harbor.

“I feel compelled to take part in opening up the history and true story of what became NCIS,” Harmon is quoted as saying (via TVLine). When I first started this show, there wasn’t a lot of information available through research.

“NCIS agents are public servants at the highest level, and many have come and gone through this life with no one knowing anything about who they are or what they do,” Harmon added. “And now that story is being told. All because of a television show.”

Although Gibbs hasn’t been seen on screen in a while, the show has had him off-screen assisting his team, and Harmon is still involved as an executive producer.