Mikio and Washizu are the commanders of the 1st and 2nd Fortress under a local lord, who reigns in the Spiders’ Web Castle. After defeating the lord’s enemies in battle, they visit the fortress. Washizu, driven by his wife, conspires and murders the lord, becoming lord of the castle. But his evil deeds come back to haunt him.

Japan is thrown into a panic after several ships explode and are sunk near Odo Island. An expedition to the island led by paleontologist Professor Kyohei Yemani soon discover something more devastating than imagined in the form of a 164 foot tall monster whom the natives call Gojira. Now the monster begins a rampage that threatens to destroy not only Japan, but the rest of the world as well.

A samurai answers a village’s request for protection after he falls on hard times. The town needs protection from bandits, so the samurai gathers six others to help him teach the people how to defend themselves, and the villagers provide the soldiers with food. A giant battle occurs when 40 bandits attack the village.