Ged Rogers is a bank clerk in his mid-forties who is forced to re-assess his career after the pruning of staff at the branch of his bank. Rather than accept relocation to another branch he resigns. During the interim period while looking for a new job he takes on the role of a Special Constable. However he soon discovers that it is not a role that suits him but before he can call a halt to his probation period he is selected by his commanding officer to undertake an undercover role to determine a fraud that is apparent at the policeman's brother's bank. Ged, feeling more confident about this clandestine role, accepts. The trail of fraud that he uncovers is far in excess to what was expected and, having survived an attempt on his life and a series of terrifying adventures, eventually leads to the downfall of the British Government.