This work reveals one of the most important intelligence triumphs of World War II. It was no less than the capture of Japan’s “Plan Z”—the Empire’s fully detailed strategy for prosecuting the last stages of the Pacific War. It’s a story of happenstance, mayhem, and intrigue, and resulted directly in the spectacular U.S. victory in the Philippine Sea and MacArthur’s early return to Manila, doubtless shortening WWII by months.