When Ellie Bruce loses her husband, Adam, in an unexplained flying accident, the aftermath of his death brings shock after shock. Their business suddenly appears to be on the point of collapse. And it seems that Adam had been having an affair. Her husband's pride and joy, a World War II Mustang fighter plane, is the key to what remains of her life. Ellie must fight to keep the plane. And to keep it, she must learn to fly it. "Permissible Limits" is about the gathering shadow of a long-ago war, about flying at its most demanding, and about a woman who must suddenly survive in a man's world.