After a UFO crash landed, the town of Pentworth and surrounding Sussex countryside have been cut off by a mysterious invisible and impenetrable wall.
A cult leader is blaming two local women - Ellen Duncan and Vikki Taylor - after accusing them of witchcraft. Detective Sergeant Mike Malone is on the case...
Meanwhile, an attempt to make contact with the visitors and their craft begins...
'The Silent Vulcan' is the final book in James Follett's sci-fi trilogy of the same name.
Abridged by Miranda Davis.
Producer: Elizabeth Allard.
Made for BBC 7 and first broadcast in 2004.
You are at the first episode