Until a cure is found for Parkinson’s, surgical interventions are being developed to improve the quality of life for those bold enough to undergo them. In this compelling glimpse of a debilitating disease, John Kempers chooses a stereotactic pallidotomy—performed on-screen—while Joan Sanders opts for deep brain stimulation. If successfully completed, the operations can provide a lessening of dyskinesia and other symptoms—but failure can mean permanent blindness or paralysis, and the pressure rests on both the doctors and the courageous patients to pinpoint the correct location in the brain to be operated on. (52 minutes)