Our modern electric power grid has been called the biggest and most complex machine in the world - delivering electricity over 200,000 miles of high-tension transmission lines. Travel around the country with host Yul Kwon to understand its intricacies, its vulnerabilities and the remarkable ingenuity required to keep the electricity on, every day of the year. At New York State's governing grid control room, learn how a massive blackout cut power to 40 million Americans; to understand how we can protect against this type of colossal failure, join a team who makes daring repairs from the side of a helicopter in flight. Visit the country's largest coal mine, rappel down the side of a wind turbine, take a rare tour of a nuclear plant and travel on a massive tanker - as Kwon reflects on the challenges and opportunities to keep the power flowing.
