Seven-year-old Nate Saint peered wide-eyed over the cockpit of his older brother Sam's Challenger biplane. The eastern Pennsylvania countryside was spread out neatly below him like a fine tablecloth. Nate was determined to remember every moment of this first high-flying adventure. Flying soon captured Nate's heart. His air-service ministry to isolated missionaries put him on a path of destiny that would ultimately end with a final airplane flight...