Empire of the Spiritual Ninja

Drugs, terrorism and political assassination — the evil Empire of the Spiritual Ninja has struck again, and only the great Ninja Master has the ability to wipe them out. But,
he has a formidable opponent on his hands, because it is one of his old pupils who now rules the dark side of the Ninja power.
A thunderous attack on the Empire's headquarters is the fighting ground for one of the fiercest battles ever waged to restore the true spirit of Ninja honor.