Flight was born in America at the turn of the century. But World War II saw more planes built in a single year - 300,000 - than had been build in the previous forty. World War II turned the American aviation industy into a huge, high-tech giant. Among the aircraft built for World War II were some of the greatest planes of all time: the C-47 transport (the "Goony Bird"); the rugged B-17 Flying Fortress; the B-24 Liberator, mass-produced by Ford on the world's longest assembly line; the P-51 Mustang, the greatest prop-driven fighter; and the scrappy Grumman "Iron Works" output - Wildcats and Hellcats that lept from the decks of U.S. aircraft carriers to maul the Japanese air force. Modern shots of restored aircraft, historic footage ranging from factory floors, to dogfights, and interviews with pilots and designers recapture the aviation industry's finest hour.