As the government realises the full implications of Year 2000, one company seems to promise all the technological answers... but what exactly are the methods and motives benind the operation?
What is the connection between the Millennium Bug, a raid on a Russian nuclear base, a break-in at a British defence contractor, and a pen that Sarah Jane Smith kept as a memento of a past adventure? The Doctor and Commander Harry Sullivan of MI5 must discover the truth before the world is plunged into a digital winter.
No longer just an expensive miscalculation, the Millennium Bug could also be the key to an alien take-over of Earth...
Featuring the Fourth Doctor and Harry Sullivan,
this adventure takes place between the TV stories The Deadly Assassin
and The Face of Evil.