In feudal Japan, blind Swordsman Zatoichi comes to the aid of a noblewoman carrying a secret treasure, and must fight cyborg ninjas and a powerful and mysterious Samurai.
Zatoichi is mentored by the blind leader of a secret organization as he contends with both the Yakuza and a jealous husband.
Zatoichi comes upon a dying man who asks him to give a bag of money to "Taichi". Zatoichi has no idea who this is but when he comes upon a small town harassed by gangsters, he finds that "Taichi" was the man's young son. Along his travels he also met a blind monk who makes Zatoichi question his murderous lifestyle. In trying to help the town, Zatoichi kills some gangsters and becomes a hero to the boy. He must make a choice of whether to use non-violence and set a good example, or violence and set the boy on the wrong path in life.
Zatoichi is forced to kill a young man who owes a debt to a yakuza boss. Moments later, his sister Osode arrives with the money she earned (prostituting herself) to pay his debts. The bosses true motives are revealed and he attempts to steal Osode even though the debt is paid. Zatoichi realizes his grievous error and protects the girl from the gang. Osode and Zatoichi are caught in a dilemma as she must rely on her brother's killer for protection and Zatoichi wrestles with the injustice he has caused.
After arriving in the town of Shimonita, Ichi finds that a price has been put on his head by a local yakuza boss. He's drawn into a trap, but after hearing of the slaying of a former love, Ichi furiously fights his way through the entire clan to face the killer, a hired ronin.
Zatoichi makes friends with a dangerous chess player, while fending off angry yakuza and bloodthirsty relatives out for revenge, and trying to save a sick child. Meanwhile, his luck with dice is turning.
Zatoichi runs afoul of some evil fugitives, working for a corrupt law official.
Blind masseur Zatoichi is nursed back to health by a young woman after he is shot by a gang member. Zatoichi, who had come to the village to repay a debt, now feels further indebted. He commits himself to use his amazing sword skills to help the young woman's father, whose river-crossing service is under attack by the same gang responsible for Zatoichi's wounds.
Blind swordsman Zatoichi, jailed briefly, is implored by another prisoner to aid him in proving his innocence of a crime for which he is sentenced to death. Zatoichi is reluctant to get involved, because he knows how often such involvement has led to trouble in the past. But events conspire to thrust him repeatedly into involvement, and gradually he comes to believe in the man's innocence and determines to free him.
Ichi travels to the village of Itakura to pay his respects at the grave of Kichizo, a man he killed two years ago. When some tax money is stolen while in transit to the governor he is accused and sets out to find the money and clear his name.
After accidentally causing the death of an old lady, Zatoichi tries to do right by buying the lady’s daughter’s freedom from a brothel - but this causes more problems than solves them.
Blind swordsman/masseuse Zatoichi befriends a young woman returning home with her baby. When gangsters mistake her for Zatoichi and kill her, Zatoichi determines to escort the baby to its father. He gains the reluctant help of a young pick pocket and together they travel to find the baby's father. But they do not reckon on the father's reaction to their arrival, nor on their own growing feelings for the child.
Zatoichi, the famed blind swordsman, returns to his home village for the first time in many years. He is befriended by Omiyo, who had the same wet-nurse as Zatoichi. He also encounters a boyhood friend, Shinbei, who now is wealthy and appears not to remember Zatoichi. Shinbei seems to be interested in repaying the villagers' debts, but is in reality manipulating the ownership of a now-valuable rock quarry. Zatoichi learns of the subterfuge and confronts his old friend, who has a score of yakuza swordsmen backing his play.
Zatoichi's trek through 88 temples to atone for his violent past is interrupted as he stumbles into a village terrorized by a violent yakuza boss.
Blind swordsman/masseuse Zatoichi befriends a young woman looking for her father, a village leader who has disappeared. As he helps her investigate the disappearance, Zatoichi also becomes involved with another young woman who is trying to help her brother, who has murdered someone at about the same time and place as the missing man was last seen.
Wishing to find peace, Zatoichi travels to his old village but only finds trouble when he ends up in a love triangle and finds old scores have followed him home.
When a local gambling house kidnaps some peasants because they failed to pay their debts, a rival gambling house pays their debts and sets them free.
Zatoichi is sworn to protect the life of a young girl and without any real allies finds himself in the middle of a bloody turf war.
Blind masseur and master swordsman Zatoichi finds a robbed and fatally wounded pregnant woman, whose baby he delivers before she dies. He takes the baby in search of its father and finds the child's aunt, who is about to be forced into prostitution for want of a payment the dead mother was bringing. Zatoichi determines to save the woman from her cruel fate.
With a price on his head, Ichi seeks tranquillity in a favorite village. Since his last visit, it has fallen prey to Boss Masagoro, the son of a merchant rumored to have stolen gold from the shogunate. The boss has hired Yojimbo as his hard-drinking enforcer, but Yojimbo is both a spy for the shogunate, trying to find the gold, and in love with the merchant's unwilling mistress, Umeno. Ichi hires on as the merchant's masseur and buys Umeno's freedom with his employer's own money. This embarrasses Yojimbo who withdraws from a pact with Ichi to stir up trouble between father and son and their gangs. As the two sides fight, Ichi finds the gold and sets up a final set of confrontations.