What is it about a quality fastball that brings us to the edge of our seats? How is it humanly possible to throw faster than 100 mph? And the big question: Who is the fastest pitcher ever? High Heat takes us on what filmmaker Ken Burns calls a "compelling, relentless, riveting" quest to deliver answers to the most intriguing questions about the fastball. Wendel provides insight into one of baseball's most exhilarating yet mystifying draws...