The scientist Devlin has developed a device that can control a tornado. During its first use, however, it malfunctions and the tornado spirals out of control. When the tornado hits a petrol station, it catches fire and turns into a super-threatening FIRENADO. Devlin and his colleagues desperately try to save the people in danger at the last second. In the process, however, they get in the way of a gang of gangsters who want to use the chaos to rob a mafia accountant.