Big Blue Sky is the story of the lost frontier of flight, tracing the origins of hang gliding from the 1880s thru today, focusing on the golden years of this exciting sport, the 1970s. The movie is a story of mankind’s spirit, dreams and experiences as much as it is a definitive historical reference. The story is told by the pioneers of the first extreme sport, and their stories are brought to life by exciting never-before-seen vintage movie clips and still images. They describe their part in history, and the profound effect flying like a bird had on their lives.