A copper by name and a copper by nature, stand-in sergeant Stu Constable faces a prisoner's ultimate weapon, bodily fluids, in a dirty protest at the suite. When an old soldier collapses with a suspected stroke, the sergeant has to contend with the hospital medics who send the veteran back to the Lock Up. And will Sgt Constable solve the mystery of the 5ft-nothing drunk claiming to be a millionaire jockey who rode 700 winners?