‘We’re fighting a new kind of war against determined enemies. And public servants long into the future will bear the responsibility to defend Americans against terror.’ George W. Bush’s words as he signed the Homeland Security Act. Neither he nor anyone else suspected that a traitor could be one of those public servants. Deep inside Homeland Security a group of elite officers is gathered — from the police, the FBI and the CIA — operating in deep cover, their contact with each other and with other agencies strictly compartmentalised. One is Brian Doyle, an NYPD detective, chosen for his determination as much as his deductive prowess. Another is ruthlessly using the carefully gathered intelligence to unleash a biological attack across America. And when Doyle does work out that person’s identity, it seems as though he will be too late to prevent the attack. ‘DuBois has his finger right on the button.’