The morning sun, riding high in the heavens over the black mesa, gleams on the shiny metallic surfaces of a new, radically designed plane, roaring through the sky at an altitude of more than 20,000 feet. Simon Gore's jet-propelled Flying Wing is undergoing its first test, with Hop at the controls, and the others watching from a control tower. The speed of high speed flight, however, is proving too much for Hop, who is still injured from a plane crash the day before...