A classic 20th-century novel. Sammy Rice, a weapons scientist and one of the "backroom boys" of World War Two, suffers from a crippling disability that has left him cynical, disillusioned, and riddled with self-doubt. But, when the enemy begins dropping a new form of booby bomb, causing terrible casualties, Sammy alone has the know-how to defuse it. Face to face with real danger, he must confront his inadequacies - if he is to succeed.