The largest manmade machine ever created, the electric power grid traverses the nation from California to Maine, Florida to Washington State. This huge complex of power plants, substations, and transmission lines continually supplies power to millions of customers. In an electrifying hour, we explore the grid’s origin, from Edison’s Pearl Street Station in New York to the post-WWII “Golden Age” to deregulation and restructuring that directly impacted California’s energy crisis in the 21st century.