On the instructions of the dominating MP Hugh Deverill, seismologist, Josef Gomez has been called in to examine earth tremors in Kent.

But the effects of the oozing mud on both people and animals is becoming increasingly evident...

Victor Pemberton's vintage sci-fi serial starring Roger Delgado and Maurice Denham.

Inspector Baxter… Geoffrey Matthews
Sorensen …. Fraser Kerr
Dr Ken Richards …. David Spenser
Professor Landers …. Rolf Lefebvre
Hugh Deverill, MP …. Maurice Denham
Josef Gomez …. Roger Delgado
Professor Lippert …. Allan McClelland
Anna Deverill …. Marion Mathie
Nursing Sister …. Eva Haddon
Janet Marshall …. Elizabeth Proud
Nurse …. Patricia Leventon
RAF Corporal …. Anthony Hall
'Tug' Wilson …. Stephen Jack
Mrs Wilson …. Miriam Margolyes
AC2 Gibbons …. Nigel Graham

Special Effects: The BBC Radiophonic Workshop

Producer: John Tydeman

First broadcast on the BBC Light Programme in February 1966. Show less