On a stormy day in May of 1889, the South Fork Dam impounding Conemaugh Lake exploded, unleashing a 40-foot wall of water. The bustling industrial city of Johnstown, PA, in the valley below was reduced to a wasteland, killing more than 2,200. This heavily dramatized documentary reviews the factors that led to the dam's collapse, while dramatic reenactments and survivors' personal testimonies detail the horror.

The Johnstown Flood

American engineer George Westinghouse revolutionized the American electricity system in the late 1880s with his endorsement of AC power distribution. This historical documentary chronicles Westinghouse's legendary rivalry with Thomas Edison and the birth of his many inventions, including the rail-road air brake.