"Children of the Stones" 1977

Synopsis:

In a sleepy English village surrounded by a megalithic stone circle Astrophysicist Adam Brake and his teenage son, Matthew, arrive to research the standing stones, but end up delving into the past in ways they never expected.

Written by: Jeremy Burnham & Trevor Ray
Cast:
Gareth Thomas
Gareth Thomas
Adam Brake 
Veronica Strong
Veronica Strong
Margaret Smythe 
Peter Demin
Peter Demin
Matthew Brake 
Ruth Dunning
Ruth Dunning
Mrs. Crabtree 
Iain Cuthbertson
Iain Cuthbertson
Raphael Hendrick 
Katharine Levy
Katharine Levy
Sandra Smythe