The main character is Soledad O'Roark, a rookie MTac whose single-minded hatred of the Metas is extreme even by the obsessive standards of her profession. Soledad earns the hated nickname "Bullet" on her first call, when she uses an O'Dwyer Variable-Lethality Law Enforcement gun to blow away a rampaging pyrokinetic in the act of frying her squad. Soledad herself modified the high-tech gun, which comes complete with color-coded bullets designed to exploit the individual weaknesses of various common Metas. The gun saves her life and the lives of several of her partners, but the department brass still demotes her, and considers filing charges, for her failure to follow official procedure by using the unregistered weapon. Soledad's lawyer, Gayle, suspects a conspiracy.