Pirazaurus experiments with the powerful deadly gas, "Mist of Death," at a gogo house. He launches his scheme to obliterate Japanese leaders with the Mist of Death as they spectate a pro wrestling match.
Shocker creates a missile base in the mountains and appoints the monster Hitodanger to defend it. After saving a boy from a Shocker attack, he fights Hitodanger to save Taki who went searching for the base.
Ichimonji, who has started an inquiry into a village thrown into panic by a gigantic catapillar creature, meets with Yoshioka who is looking for a missing professor, and together they begin a search for the professor.