Wind gets treated here as a destructive force worth studying on its own terms, not just weather background: a single severe storm can cause more than 10 billion dollars in damage in a day, and the film sets that number against the human toll when tornadoes and hurricanes tear through American cities. It splits the subject into two kinds of violence, the wide, slow devastation of a hurricane spread across a region and the narrow, sudden strike of a tornado through a few city blocks, and follows the storm chasers and meteorologists working the front lines of both. Interviews cover the instruments and forecasting tools scientists use to track wind speed and warn people before landfall or touchdown, and the film asks how fast wind can get before it becomes unsurvivable. The United States, with its exposure to both hurricane coastlines and tornado corridors, serves as the case study throughout, and the film closes on the open question of whether any of this destruction can actually be reduced rather than just predicted.