The Tomorrow People - Season 2 - Eps 7: A Rift in Time, Part 2: Turn of the Thumb
Stephen is transported to the Hall of the Time Guardians where he meets Zenon, Peter's grandfather. Peter has become lost in the past and his only hope of rescue lies with the Tomorrow People.
About The Tomorrow People

Title: The Tomorrow People
First Air Date: 1973-04-30
Last Air Date: 1979-02-19
Status: Ended
Rating: 6.6/10 (from 11 votes)
Language: EN
Seasons: 9
Total Episodes: 68
Network: ITV1
Genres: Sci-Fi & Fantasy, Drama
Production Companies: Unknown
Synopsis
Born to human parents, an apparently normal child might at some point between childhood and late adolescence experience a process called 'breaking out' and develop special paranormal abilities. These abilities include psychic powers such as telepathy, telekinesis, and teleportation. However, their psychological make-up prevents them from intentionally killing others.
Cast

Nicholas Young
John