Young siblings Dan and Helen must protect their new friend, a strange blue alien boy they name Peep-Peep, from the terrifying evil alien known only as The Thin (Space) Man, who's after him.

Cast:Sylvestra Le Touzel, Stephen Garlick, Anthony Woodruff, Colin Mayes, John Woodnutt, Loftus Burton,

Genre:Science Fiction,

country:United Kingdom,

Production:BBC,