When Leon and Freak, the best computer hackers in the country, team up with Fast Eddie , hotshot of the video arcades, they are playing for high stakes. Their target is Lawrence MacNiece, computer security expert and the only obstacle between them and the millions of pounds that pass through the City's central clearing computer every day. Leon, a hacker convicted for a crime he did not commit, escapes from detention centre following the death of his father, to take revenge on the man who really did it.