A bravado period action film set at the end of Japan's feudal era in which a group of unemployed samurai are enlisted to bring down a sadistic lord and prevent him from ascending to the throne and plunging the country into a war-torn future.

The head of the Mamiya clan committed suicide in protest against the feudal lord, Matsudaira. Matsudaira is a tyrant whose brother has appointed him to join the shogunate. The elderly Doi approaches Shimada Shinzaemon to carry out an assassination in hope of avoiding the war he feels is to come should Matsudaira get even more power. Though he initially refuses, Shimada decides to gather reliable people to assist him. But, on that fateful morning..

A sadistic Daimyo (feudal lord) rapes a woman and murders both her and her husband, but even when one of his own vassals commits suicide to bring attention to the crime, the matter is quickly hushed up. Not only will there be no punishment, but because the Daimyo is the Shogun's younger brother, he will soon be appointed to a high political position from which he could wreak even more havoc. Convinced that the fate of the Shogunate hangs in the balance, a plot is hatched to assassinate the Daimyo. The two most brilliant strategic minds of their generation find themselves pitted against each other; one is tasked to defend a man he despises, and has a small army at his disposal. The other is given a suicide mission, and has 12 brave men. They are the 13 Assassins.

In between the original 1963 13 ASSASSINS film and the 2010 remake by Miike Takashi, Fuji TV produced a version for TV. Starring Nakadai Tatsuya and Natsuyagi Isao, with strong support from Tanba Tetsuro and Tanaka Ken, this is the ultimate tale of samurai justice carried out in a historical masterpiece. The shogun’s half-brother, Matsudaira Naritsugu has been slated to join the Roju Council of Elders as a senior adviser even though he is criminally insane. His outrageous acts cause one of his top retainers to commit ritual suicide in protest over his lord’s crimes. Alerted to these crimes, Roju Councilor Doi asks Inspector General Shmada Shinzaemon to assassinate Naritsugu before he can be seated on the council. Gathering a band of 13 (including himself), Shimada sets out on a death-defying journey to cut down the lord before he can reach Edo. Can a band of 13 samurai defeat the vile Naritsugu’s 200 man entourage and enact justice against his cruelty?