Townsend's Revenge

Greg Townsend, a former Naval Aviator and aeronautical engineer, has a vision, to be the first to haul cargo into orbit on a schedule. His prototype spacecraft is an old F-4 Phantom airframe with a powerful rocket engine, all launched from the back of a Boeing 707. Roger Jackson, a high-tech financier bent on becoming a space tycoon, funds the program. The ship is ready for its maiden flight when Jackson receives a mysterious call, a wisp of a deep-cover plot to sabotage Townsend's ship.
During the flight, Townsend and Mitch Silvera, his back-seater from their F-14 days, suffer a catastrophic cabin pressure failure. They successfully maneuver the stricken ship back to Earth.
Townsend discovers they've been sabotaged, and that Mitch and Jackson are the culprits. Overwhelmed with grief, he pushes forward preparing for the next flight, now aware that a powerful, secret organization is bent on their destruction.
Searching for a replacement for Mitch, his old friend from his airline days, Kate Flanders, arrives on the scene. Townsend's feelings from the past for Kate begin to simmer as the day for the next flight approaches. But then things begin to unravel - a sudden death, then a betrayal that Townsend could never believe, as he and Kate are caught up in a power struggle that tests their friendship and their courage.