Pediatric surgeon Atsuyuki Yamataka is known as the "final hope for young lives." He treats children that other doctors can't, and has helped more than 10,000. His expertise is difficult surgery on infants and children with difficult illnesses. A slight error in surgery on a newborn can be fatal. But Yamataka's goal is simple: The safest and most reliable surgery. The fear of a difficult operation makes him study hard, which gives him confidence. A young girl with a serious lung condition is brought in for help. Watch as Yamataka tests his limits to save a life.