A new form of computer virus is spreading, and it is proving to be very destructive. Mike must stop the spread of this computer nanovirus that destroys all electronic gadgets and threatens a global meltdown.

The job gets more complicated when KITT is infected and suffers a series of malfunction. Mike has to find a way to work with KITT’s malfunctions and still recover the antivirus that will save the world from total meltdown. He tracks down one of the developers of the virus and the only one who knows how to stop it, but he happens to be Sarah’s former boyfriend.