A rebellion on another planet. A kidnapping in central London. The head of MI5 assassinated. A hostage siege suddenly and violently lifted by the SAS. A computer CD slipped into the Doctor's pocket by a dead man ... 

It's 1998, and the global information superhighway is about to come on line. OffNet controls everything digital from cars to sliding doors, from interactive television to military command and control systems. 

the Doctor and Sarah must join forces with an old friend in a race against time to prevent the breakdown of technological society and foil an unconventional alien takeover bid .... 

This adventure takes place between the television stories THE SEEDS OF DOOM and THE MASQUE OF MANDRAGORA.

JUSTIN RICHARDS is the author of the New Adventure THEATRE OF WAR. With qualifications in English and Theatre, he works for a multinational comuter corporation in the area of end-user interface and human-centric design. Whatever that means.