Jean and Bill are a married couple trying to scrape a living. Out of the blue they receive a telegram informing them Bill's long-lost uncle has died...
The blue crystal that the Doctor took from Metebelis III in a previous adventure is desperately sought by the Eight Legs, a race of mutated spiders,...
The Master, in the guise of Professor Thascalos, has constructed at the Newton Institute in Wootton a device known as TOMTIT - Transmission Of Matter...