Children of the Stones (1977) 
Scientist Adam Brake and his son Matthew arrive in the sleepy English village of Milbury to find it under the grip of weird psychic powers unleashed by the sinister village squire, Hendrick, and whose power they struggle to break.
Children of the Stones: full season (7 episodes) All Seasons
Children of the Stones is a British television fantasy drama serial for children, produced by HTV in 1976 and broadcast on the United Kingdom's ITV network in January and February 1977. The series is today considered a landmark in quality children's drama and has been called "the scariest programme ever made for children" [more inside]