Terrence hardiman stars as the demon headmaster who wants to take over the world using his hypnotic powers in this iconic cbbc series. Based on the childrens novels by gillian cross. Directed by roger singleton turner grange hill jackanory.   the hypnotic and psychotic demon headmaster wants to take over the world. But he didnt count on the society for the protection of our lives against them splat  trying to thwart his plans.  splat are a small group of pupils determined to resist the demon headmasters powers. Among them are brothers harvey and lloyd, and their foster sister dinah frances amey, who work hard to try and resist the megalomaniacs hypnotic gaze.  but they will have to be quick. Once the demon headmaster has the pupils under his control his next step is downing street, before taking over the rest of the world! What the press said for the 30 something nostalgia seeker, this is essential viewing scifi now release date 14th may 2018 run time 7 hrs 55 mins discs 3 language english with english subtitles