This documentary presents a story about the day one hundred and forty-seven deadly twisters swept through Kentucky, Ohio, and Alabama. The funnels devastated large portions of eleven states, taking three hundred and seven lives in the United States and eight more in Ontario, Canada. It includes extensive footage of the tornadoes actually striking Louisville, Cincinnati, and Xenia. It also shows how early warning, advance preparation, and coordination in emergency operating centers have helped to save many lives.
—National Technical Information Service