Most of the world's blind people live in remote, impoverished areas. The majority of doctors able to cure them work in cities. Dr. Sanduk Ruit from Nepal, and his American partner, Dr. Geoff Tabin, have made perfecting a portable low cost surgery to restore sight their life's work. They trek to Nepal's remote Northeast, carrying an entire hospital on porter's backs. Their mission is to bring the needlessly blind out of the darkness.