Combat veteran John Puller, now working as an investigator for the Army's Criminal Investigative Division, tries to solve the murder of an Army man and his Pentagon contractor wife in their isolated rural home.

As Alex Cross tries to plan his wedding, an elusive gunman is killing crooked D.C. politicians, and Cross must battle with FBI agent Max Siegel over jurisdiction as he tries to crack the case--until Cross finds out his arch enemy Kyle Craig is in town and doesn't plan on leaving until Alex and his family are dead.