In 15th-century Japan, the Awa clan's Princess Fuse gives birth to eight sons, the product of a union with a spiritual demonic dog. The children grow to become the Hakkenden, fearsome dog warriors who travel the country fighting injustice, battling evil and uniting to avenge the slaughter of their family. This supernatural saga of the samurai era is based on the sprawling serial novel by Kyokutei Bakin.