The mayor of New York has a daughter who's missing and in danger. Detective Michael Bennett has a son who's in prison. The two strike a deal. Bennett and the mayor have always had a tense relationship, but now the mayor sees in Bennett a discreet investigator with family worries of his own. Just one father helping another. The detective leaps into the case, and sources lead him to a homicide in the Bronx. The victim has ties to a sophisticated hacking operation --- and also to the mayor's missing daughter, Natalie, a 21-year-old computer prodigy. The murder is part of a serial killing spree, one with national security implications. And suddenly Bennett is at the center of a dangerous triangle anchored by the NYPD, the FBI and a transnational criminal organization.