Zero Hour on the Grid hypothesizes a plan by a foreign country to collapse the US electric power grid for a period of several weeks. During this period, the US dollar will be unavailable to support its role as the worlds reserve currency in international trade. The attacking foreign country plans that its currency will replace the dollar in international trade. The foreign planners debate secretly the four ways to take down the grid and settle on a mixture of three and a plan to communicate with the few personnel who will participate. The book then explores the effects of the extended loss of power on several families that the foreign currency has displaced the dollar in world trade.