Captain "Steeley" Delaroy, one time air smuggler, with his two comrades, "Tubby" Wilde and Brian Ballantyne, makes a dramatic appearance in this story, this time on the side of the law. A fatal accident at a flying club is casually dismissed as such by a country coroner, but the three airmen are not satisfied. Investigations lead to some remarkable discoveries, and the trail soon leads the airmen into situations far more dangerous then they expected.