When Special Agent Cailin McKenna and her National Investigation and Protection Unit partners are drawn into an investigation surrounding a pair of school shootings in the Twin Cities, it soon becomes obvious that there's more to it than meets the eye. A hate group is recruiting teenagers on school grounds with metal music rife with violent messages, all while plotting a massive terrorist offensive on a major Twin Cities venue. It gets personal when Cailin's brother is stabbed and the attack is linked to their case. And how can Cailin possibly maintain her fiery new relationship now that her psycho stalker ex-girlfriend is hell-bent on getting her back. When events take a deadly turn, Cailin is suddenly in a fight for her own life. And the clock is ticking-can she prevail in time to stop the worst attack the Minnesota has ever seen?