Following the death of the second Tokugawa shogun, it is revealed that he was poisoned by retainers of his son Iemitsu in hopes of gaining him the shogunate despite the stammer and birthmark which undermine his respect. Iemitsu and his brother Tadanaga become bitter rivals for the shogunate, and...
A steel samurai blade that was to be given to the American ambassador by the Emperor of Japan is stolen. American sailors and Japanese samurai are sent to find it.