A U.S. naval counterintelligence officer working to safeguard Pearl Harbor; a Japanese spy ordered to Hawaii to gather information on the American fleet. On December 7, 1941, their hidden stories are exposed by a morning of bloodshed that would change the world forever. Scrutinizing long-buried historical documents, NCIS star Mark Harmon and co-author Leon Carroll, a former NCIS Special Agent, have brought forth a true-life NCIS story of deception, discovery, and danger.