The year is 1580 and Nobunaga Oda is working to consolidate his power over Japan. In his army are weapons of great destructive power: rapid fire machine guns, lasers, missiles and, most frightening of all, the reputedly immortal ninja Ginnai Doma. Like a sentence of divine wrath he hunts down and destroys dissident monks, ninjas and others, wherever they may be. With the clans on the brink of destruction, a single ninja accepts the impossible task: kill the immortal Ginnai.
Akira, Junpei, Keiko and Kumiko are members of the Rutz Detective Agency, and are always ready for a good case. When a mysterious murder places a top secret floppy disk in the hands of Junpei, the gang suddenly has a conspiracy on their hands of grandiose proportions. Not only have they made an enemy of politicians and shady characters, but also the munitions manufacturer company Yotsuboshi itself! With murder attempts, rampaging machinery and kidnappers to handle, the group must race against the clock to foil the evil scheme before it's too late!
