Sam Doyle (Pat O'Brien) is a military pilot whose drunken recklessness gets his co-pilot killed in a crash. Disgraced, Sam flees the country and takes a job working for a small airline in South America. Years later, Sam's now-adult son, Danny (Glenn Ford), becomes a test pilot for the Army Air Corps just before World War II. He's also fallen for Susie Thompson (Evelyn Keyes), the niece of the man his father killed. Sam returns to redeem himself in his son's eyes.