Jack Jones, National Treasure and the backbone of radio schedules and British resolve, has disappeared. Needless to say the powers that be are in something of a tizz, fearful of the disquiet this seems to be causing across the country. Although everyone is trying to keep calm and carry on, he really must be found.

But it is more difficult than it would at first appear. To start with, it seems that he has no fixed abode. And no one is sure quite what he looks like. To find him, the top brass in the police send a rookie and a sergeant nearing retirement.

The chase leads the policemen to the strangest corners, and oddest people, of Britain. Why has Jack Jones disappeared? Is he still alive and if so, is finding him really the best outcome for both the man and the policemen that pursue him?