Rice merchants are dropping dead in Edo, with authorities at a loss to explain the murders and rumours of their political connections running rife in the town. Vicious spies are travelling thick and fast through the town, in disguise, but not invisiblewho can they be? While returning from Hakone, Shintaro is attacked by a young samurai spy named Gorota, unaware that Shintaro is investigating the mysterious murders. Gorota lets Shintaro in on a secret: the deadly secret of OwariThe Black Ninja! Originally aired on Australian TV in 1965, THE BLACK NINJA is based around the social unrest in Japan in 1788.