Dr. Jones was an Oxford physicist from a military family who found himself in charge of English scientific intelligence during the Second World War. In this capacity, he led the effort to identify new German technologies and tactics, and then devise countermeasures.
Among his accomplishments were sending a raiding party across the Channel to dismantle and bring back a complete German radar station, anticipating and foiling the navigation systems the Germans devised for their bombers, anticipating and devising limited countermeasures to the V1s and V2s, exfiltrating Niels Bohr from Copenhagen and analyzing German effort to develop atomic bombs.
Dr. Jones certainly lived in interesting times, but unlike the much quoted Chinese curse, which continues with may one have powerful enemies, the powerful men in his life, most notably Churchill, had complete faith in him, and with good reason.
This is an incredible book, which I heartily recommend to anyone with an interest in military history or science.