Paralyzed and unable to speak after a stroke, Cathy Hutchinson was trapped inside her mind, only communicating with the outside world through her eyes. Then she heard about an experiment called BrainGate at Brown University that hoped to allow immobilized patients to control robotic limbs with their thoughts. But can what sounds like science fiction eventually transform the lives of quadriplegics? And could it help Cathy take control of her life? Jessica Benko tells the story of a radical new technology, a pioneering group of researchers, and one woman's effort to transcend her condition and the body itself.