Published to tie in with a repeat transmission of 32 hour-long episodes of Thunderbirds on BBC2, this book traces the history and background of the futuristic series involving puppet heroes such as Jeff Tracy, Brains and Lady Penelope. Their personalities and biographical details are given, together with interviews with key characters and information about the voices behind them. Attention is paid to the functions and features of the Thunderbird machines - and Lady Penelope's pink Rolls-Royce, with its formidable array of gadgets, is not forgotten. The book also contains interviews with the creator of the series, Gerry Anderson, and its scriptwriters and production staff, and other features include information of Thunderbirds memorabilia and details of fan clubs.