Twelve-year-old Josh Ladd's discovery in the Kauai jungle of a Japanese World War II airplane and its pilot who doesn't realize the war is over leads him on a race against time with a conniving foe.
When twelve-year-old Josh witnesses the sinking of a Soviet robot submarine off the coast of a Hawaiian island, he becomes the quarry of Russian spies racing to beat the United States Navy to the sub and its secrets.
A petty quarrel and efforts to foil poachers who are after some rare birds seem unimportant as members of the Ladd family separately struggle to survive when a powerful hurricane hits the island of Kauai.