Sapphire & Steel charted the efforts of two mysterious 'agents', named Sapphire (Joanna Lumley) and Steel (David McCallum), as they were given a number of 'assignments'. featuring everything from a faceless man and a vengeful soldier, to living nursery rhymes and a time-trapped motorway cafe. The series was innovative, intelligent and terrifying, and it has stayed in the memories of all who saw it. In this guide, Richard Callaghan delves into the six televised 'assignments' and finds out what made them tick. He explores the continuity and background to the show, and gives all the facts and figures as well as a critical commentary. The show's spin-off books and audio adventures are also discussed and reviewed. This edition of the book has been fully revised and updated including new interviews with key cast and crew, and new and updated facts and figures relating to the show.