Stanley Kubrick's controversial film triggered copycat violence on its initial release and as a result the director withdrew the film from circulation in Britain, keeping it suppressed right up to his death in 1999. The film follows sadistic punk Alex (Malcolm McDowell) as he takes his gang on a rape and murder spree, showing absolutely no mercy to any of his victims. When he is eventually captured, the authorities subject him to a series of experiments designed to rid him of his violent tendencies.

The Doctor is on a mission, travelling back to the middle ages to locate some missing scientists. He is, however, seriously inconvenienced when he meets a Sontaran warrior. Jon Pertwee stars.

All four classic Doctor Who stories featuring the alien species, the Sontarans, who first appeared in the 1973 story, 'The Time Warrior'. The Sontarans are a self -cloning race who live in a militaristic society in the 'southern spiral arm of the galaxy'. Humanoid in appearance, with a squat build and distinctive dome-shaped heads, they are far stronger than mere humans and possess an unquenchable thirst for war. The other stories in this set are 'The Invasion of Time' (1977), 'The Two Doctors' (1984) and 'The Sontaran Experiment' (1975).