The film details Australian contributions to flying, including the feats of Lawrence Hargrave, an early flight of Harry Houdini in 1910, T.E. Hart's flight from Sydney to Penrith, Guillaux's 1914 flight in Sydney, the work of Ross and Keith Smith, and Australian flying inventions. It then covers the history of Sir Charles Kingsford Smith and his plane, The Southern Cross, in particular his circumnavigation of the world. It also touches on the development of the Australian postal air route.
The film begins with shots of American bombers flying in formation and the narrator giving the audience a dictionary definition of a "special delivery" and the vital role that air power played in winning the late conflict. He goes on to say that the Air Force can have constructive, as well as destructive uses—several examples are shown of this, including the dropping of food and supplies to remote areas, using B-17s to get serum to Alaska and B-25s to deploy DDT, and using helicopters to rescue the wounded. These are all examples of the peaceful uses of the air power that had been created for war. Various new aircraft are also shown, such as an early jet, and a "flying wing".