The personal journey of Hugh Herr, a double amputee and MIT scientist who creates brain-controlled robotic limbs. At 17, Hugh survived a near-death experience while climbing Mount Washington. Stunned by the prosthetic he was given, and realizing there was untapped potential for such devices, Hugh set out to improve the field of prosthetics. His innovative success leads to a major scientific breakthrough, a radical new way of performing amputations, and more.