Every year at least 98,000 Americans die - and countless more are injured - as a result of medical errors. This program begins by profiling the efforts of Sorrel King, whose 18-month-old daughter Josie was killed at one of the most respected hospitals in the world, Johns Hopkins. King has gone from grieving victim to engaged activist, partnering with Johns Hopkins to make safety a top priority at the institution. Now she has joined forces with Dr. Donald Berwick, a nationally recognized patient safety advocate, to save 100,000 lives in American hospitals.