Rina, a beautiful woman who grows gigantic under the influence of electric current, has been getting rid of monsters day and night. One day, while the media is covering her daily activities, her father is kidnapped by a terrorist group. The terrorists demand that Rina becomes gigantic and destroy the city indiscriminately. As ordered, Rina squashes buildings, cars and even railroads. Tanks are put in action to stop this giant woman… And even a tentacle monster, her formidable enemy, turns up to attack her.