After being interrogated for days by the Department of Homeland Security in the aftermath of a major terrorist attack on San Francisco, California, seventeen-year-old Marcus, released into what is now a police state, decides to use his expertise in computer hacking to set things right.

In the City, where an iron-fisted Mayor's goal is perfect control through education, fifteen-year-old Tack is torn between a growing sympathy for the Truancy, an underground movement determined to bring down the system at any cost, and the desire to avenge a death caused by a Truant.