The tyrannical Lord Danjo Mikoshiba covets the rich, fertile lands surrounding Lake Yakumo. During a memorial ceremony for the late Chigusa lord, Mikoshiba launches an attack, overthrowing the honorable Lord…

Unusual volcanic activity in Japan awakens Gyaos, a bloodthirsty flying monster with the power to slice things in half with an ultrasonic ray. While scientists and the military scramble to…