Ichi is staying at an inn when a woman dies. Her dying wish is that Ichi take her son to his father, an artist living in a nearby town. After arriving in the town, Ichi finds out that the father has been forced by a local boss to create illegal pornography to pay off his gambling debts. Ichi makes it his mission to save the man and reunite the family, even though it brings him into conflict with a samurai he sort of befriended on his way to the town.
In a Toei all-star effort, Matsukata Hiroki, Otomo Ryutaro, and Konoe Jushiro combine to create an exciting black and white sequel to the classic story of 17 Ninja, one of the most famous films from that noted studio. In the year 1651 the Kishu clan is about to rise against the Tokugawa shogunate using a stash of muskets being guarded by Jinza the leader of the Koga ninja. The Iga ninja are called upon to stop the revolt under the leadership of Hattori Hanzo setting off a spy versus spy battle of silent ninja stealth. Through all the turmoil, Shizaburo and Yuka have broken the taboo of ninja falling in love and strive to achieve the forbidden life of happiness that is denied to all members of the ninja class.
The Yagyu Family have been teaching the Shinkage style of fencing for generations. Now a new fencing school has opened in Edo, claiming to be the true Shinkage style. Yagyu Jubei faces his biggest challenge yet when the master of the new school claims he is the legitimate successor of Shinkage and tries to take the Yagyu's political power.
A wave of terror is threatening to unseat Shogun Yoshimune. Police stations are erupting into flames, convicts escaping from prison, houses robbed and vandalized, streets teeming with panicked citizens. Is Ijyuin Tanomo, highly-placed official of Owari clan, secretly using deadly ninja to foment riot and rebellion? Narumiya Shinbei, a lone samurai spy adept at ninjutsu must uncover the hidden hand orchestrating these shocking crimes. Shinbei enlists a small band of dedicated ninja to lay siege to the enemy’s stronghold, where his own sister works as an undercover agent. Now, ninja must fight ninja in a last desperate battle to save the shogunate.
Frustrated with the bad behavior of his lord, Inaba Yajuro (Otomo) declares that he is leaving the clan and sets off on a journey that leads him into a small town besieged by a violent group of brigands. In a kind of homage to Kurosawa's 7 Samurai, the townspeople have been unable to defend themselves and Inaba sets out to teach them how to stand up for themselves. Meanwhile the vile Lord Yasumasa has sent the 4 finest swordsmen in the clan out to hunt Inaba down and kill him. Led by the magnificent Ichibei (Konoe), a master of weaponry in his own right, everything points to an ultimate showdown between the former friends in a battle to the death.
As the Shogun lays dying, seventeen Iga clan ninja are sent to infiltrate the impenetrable fortress where his youngest son is preparing to storm Edo Castle and name himself Shogun by force of arms. They are to either steal the documents that will eventually give him lawful claim to rulership, or they are to assassinate him. But even before they reach the castle walls, they find their every move countered by a ruthless ninja hunter in the employ of the would-be usurper (Konoe), who not only knows their every tactic but knows the exact make-up of their team thanks to his own spies within Edo Castle. As the Iga Ninja fall one by one, the mission's success or complete failure--where failure will result in a bloody war of succession--comes to hinge on a single young and inexperienced ninja (Kotaro).
When Kanbe Nagakichi has his turf taken over by Ano-Toku, the father-in-law of his sworn brother Kira Nikichi sets in motion one of the most violent gang battles in Japanese history. Forced by the situation to choose between family and yakuza honor, Nikichi faces off against the vile combination of Ano-Toku and Kurokoma Katsuzo, villains so low as to ambush their foes using snipers. Nikichi, who owes allegiance to Boss Jirocho of Shimizu asks Jirocho to spare Ano-Toku’s life until events force a showdown between the 30 member Shimizu gang and a force of over 200 men fighting on Ano-Toku’s behalf. Meanwhile, a mysterious samurai may hold the key to deciding the outcome of this battle!
The story concerns the efforts of seven master swordsman who join together to protect the new inexperienced Shogun Tokugawa Yoshimune from the evil plans of the Owari Clan's corrupt Lord. It's a colorful bunch, a drunk samurai, a master thief, a sword instructor and a Lord who is disguised as a ronin since it is an executable offense for a lord to wander outside of their domain without permission. As the Chief Magistrate becomes suspicious of the Owari plot to send men to Kodenmacho Prison to start a riot he begins to investigate the rumors. He soon calls upon the Lord of Mikazuki Castle and the Shogun's best friend to help thwart the evil ambitions and battle the rouge swordsman hired by the Owari Clan.