"Frank's old friend Ray Ademec, former ace Navy pilot, has been hired to test pilot a superhot, supersleek jet--the MAX 1. But they Ray disappers, and the MAX 1 is nowhere to be found. Frank's pilot license proves invaluable as the Hardys take control of the MAX 2. Their mission: find Ray and recover the MAX 1 before it falls into dangerous hands.
Finding a clue to the whereabouts of the MAX 1 in the Utah desert, the boys set out to investigate. Instead they find themselves outnumbered and outgunned in a high tech, high altitude air battle. They've flown into the middle of a submersive plot posing a deadly threat to the top levels of the U.S. space program and the U.S. government!"