"The Heart of an Athlete" examines the dangers posed to college athletes by congenital heart defects. "The Back Nine with Bubba" offers a behind-the-scenes look at professional golfer Bubba Watson as he plays a casual game with some friends. "Racing ... (more)Drones" looks at the growing sport of drone racing. "Welcome to Wellington" takes a look at the equestrian sport of show jumping. "GoPro Moment" looks at ice climbing.