The film stars Gene Tierney, George Montgomery, Lynn Bari and Victor McLaglen, and was directed by Henry Hathaway.

He is offered $20,000 to take pictures of the Burma Road, a vital link for Allied supply that had been built to support the Chinese war effort.

Upon their arrival, he bumps into his old pal, Captain Shorty Maguire, a mercenary pilot with the U.S. staffed "Flying Tigers" defending China against the Japanese.

She tells him that her father, Dr. Young, has a home in the city, and that she is selling off the last of her family's valuable possessions to fund a mission school he runs for orphans in Kunming.

Johnny realizes that he has been played by the pair, but tricks them into replacing the camera equipment he needs to photograph the Burma Road - this time for a big payday from the Western press.

Johnny stays in Mandalay, waiting to be flown over the Burma Road by his pal Shorty by tagging along on one of his solo reconnaissance flights.

Bull reports back to his Japanese commander, and is ordered to retrieve the document Johnny accidentally had taken, evidently containing military plans for an upcoming campaign against the Burma Road.