This remake of Satomi Hakkenden is the most requested of all Toei movies and features some of the greatest special effects ever filmed. Set in the mountains of Awa Province, a monster bat from the heavens, a monster eagle from the clouds, a killer amphibian man, and a fire-breathing monster serpent! Mean-while being protected by the black magic of two sorceresses, the army of Ogigayatsu Sadamasa surges on! Young Satomi Yoshimichi stands up to the onslaught in defense of peace and happiness. As incarnates of the loyal family canine Yatsufusa, eight young warriors are bound by eight mystical beads of virtue. These are the adventures of eight warrior brothers, Satomi Hakkenden!
In the first year of Chōroku, Satomi Yoshimi, lord of Takita Castle in Awa, faces defeat by neighboring lord Anzai Kagesuren. As the castle nears collapse, Anzai demands a seed from Yoshimi’s lineage, specifically from his wife, Fushihime. Outraged but facing annihilation, Yoshimi gives Fushihime a string of eight ancestral beads and urges her to escape to loyal retainer Inuda Kobungo. Instead, she goes alone to Anzai, followed by her dog, Hachibo. In a twist, Hachibo attacks and kills Anzai, allowing Fushihime to escape. She later reveals that the beads protected her and predicts that eight warriors bearing these beads will someday defend the Satomi family before passing away. Yoshimi finds one of the beads in Inuzuka Nobuno’s armor and convinces her to serve him. Meanwhile, Baka Daiki, plotting to overthrow Satomi, imprisons Inukawa Shosuke, who tries to intervene, under the watch of vassal Aminen Saomojiro.
During the war-torn feudal wars in Japan, the Awa clan faced certain extinction from a rival clan backed by demonic forces.
However, a careless promise by their lord leads to both salvation and disgrace when their family dog brings back the head of the enemy warlord and insists on marrying the lord's daughter. Their unnatural union bears fruit but when both are killed, the eight unborn pups are reincarnated as the eight Dog Warriors - The Hakkenden.
As they slowly find each other and come together as a group, these eight warriors, who represent the eight separate aspects of Bushido, engage in bloody battles with demonic entities and evil samurai in a final attempt to redeem their clan!
