There was no name on the C-46 but the ground and flight crews who flew the Hump called her the Betty G. The airplane was identified by a painting of a scantily clad female on the left side of the nose that resembled Betty Grable.

In 1944, the Betty G encountered severe turbulence and crashed into the side of a mountain—there were no survivors. The wreckage was located in an uncharted area and attempts to reach the site were futile. Rumors circulated that gold coins for Chiang Kai-shek's payroll were aboard.

Fifty years later, Joe Reynalds inherits his father's business but is unable to pay the $1,500,000 estate tax. Joe learned of the Betty G from his father who flew the Hump—his father wasn't sure there was gold aboard. To save the family business, Joe decides to throw a 'Hail Mary' and search for the Betty G's gold.