Meet the protectors. Their motto: \'We Sell Security\'. Their object: preventing crime. Meet the protectors: Ian Souter, Robert Shoesmith and their Girl Friday, Heather Keys. Their motto: \'We Sell Security\'. Their object: to prevent crime. Operating from a smart Marylebone office, the trio form a high-powered private investigation team, seriously dedicated to fighting crooks and forestalling crimes of all kinds in the twilight borderland between the underworld, and the policeman\'s beat. Originally screened by ABC in 1964.