British space boffin Bernard Quatermass (John Robinson) becomes suspicious when hollow meteorites start peppering the English countryside, people begin to act inexplicably, and he discovers a top-secret installation that is very similar to his proposed moon-colony. The 6-part BBC teleplay was a sequel to the successful series 'The Quatermass Experiment' (1953) and Robinson was a last-minute replacement for Reginald Tate, who had played the titular character in the earlier series but who had died shortly before filming of the sequel was to begin. Quatermass II was one of the first sci-fi productions to feature the eventually well-worn trope of aliens taking over human minds ('Invaders from Mars' and 'It Came from Outer Space' came out a couple of years earlier) and was the first sequel to simply add a number to the title. Reflecting the times, writer Nigel Kneale weaves public mistrust of their own government (the story takes place in a top-secret government installation located on the site of a razed village) and labour unrest (at one point the workers at the secret plant riot) into the story. While still modest, the budget was twice that of the first series and the production, although clearly cost-conscious, is quite well done. The acting, especially Robinson, is very good and the script is literate and reasonably scientific (within the constraints of the storyline). The story has a hard edge at times and elements of the plot prompted the BBC to issue warnings to children and "...people with a nervous disposition" although the concern seemed to be more with the (off-camera) murder of an innocent family than with the alien horrors. Remade in 1957 as a feature-length film (albeit with a different ending) by Hammer Film Productions starring Brian Donlevy as Quatermass, and directed by Val Guest (who directed the excellent 'The Day the Earth Caught Fire' in 1961). As a teleplay, Quatermass II is smarter, more entertaining, and has aged better than contemporaneous British sci-fi movies (such as 'Spaceways' and 'Satellite in the Sky', both 1953) and is well worth watching (all 6 episodes can be found on-line at the time of this writing).