Survivors - Season 1 - Eps 1: The Fourth Horseman
A virulent flu bug is spreading through the country like wildfire. Abby Grant (Carolyn Seymour) and her husband David (Peter Bowles) are aware that the flu has reportedly claimed millions of people's lives in China, but they don't think that could happen in England. Abby becomes ill and takes to her bed. Meanwhile Jenny Richards (Lucy Fleming) learns from a doctor that this is no flu bug and that hundreds are now dying. Acting on his advice she flees London for the countryside. Abby wakes days later and fears that she may be the only one left alive...
About Survivors

Title: Survivors
First Air Date: 1975-04-16
Last Air Date: 1977-06-08
Status: Ended
Rating: 7.9/10 (from 21 votes)
Language: EN
Seasons: 4
Total Episodes: 38
Network: BBC One
Genres: Drama, Sci-Fi & Fantasy
Production Companies: BBC
Synopsis
Survivors is a British post-apocalyptic fiction television series devised by Terry Nation and produced by Terence Dudley at the BBC from 1975 to 1977. It concerns the plight of a group of people who have survived an accidentally released plague – referred to as "The Death" – that kills nearly the entire human population of the planet.
Cast

Julie Neubert
Wendy

Ian McCulloch
Greg Preston

Lucy Fleming
Jenny Richards

Denis Lill
Charles Vaughan

Stephen Dudley
John Millon

John Abineri
Hubert

Lorna Lewis
Pet

Gordon Salkilld
Jack