The show, which has been booked by BBC America for the entire season, is a "punk rock thriller", as its name suggests, the "City Guards" part of the huge set of Disc World. Focus on a group of Ankh-Morpork city-state guards of all races, struggling to protect this ramshackle city. The characters identified in the show also include Death, the key character in the novel series. The Disc World novel is set in a magical world supported by four giant elephants held by a giant tortoise. the series is very large and the writing is very ingenious and interesting. More than 80 million copies have been sold worldwide. The "Guards" series was written by Simon Allen ("fight back" and "the three Musketeers") and was co-produced by BBC Pictures and Narrativia Pictures, founded by Pratchet, for a total of eight episodes.