"Dusty" Miller, who had once served under Biggles during the war, approaches him with a problem. His son, Tommy, had been wrongfully imprisoned and the experience had embittered him. Upon his release he had fallen in with a gang of jewel robbers, but, as always, the gang had fallen out. Now Tommy is the only one who knows exactly where the stolen jewels are hidden. Biggles has a dilemma. The police do not make deals with criminals, but here is a chance to recover some valuable stolen property - and will Tommy be prepared to make a fresh start?