Shocked by the murder of a friend, FBI Special Agent Kit McGovern vows to bring the killer to justice. Then the shooter kills again, and again … and again. Saddled with an unpredictable partner, forced to put her personal life on hold, Kit doggedly pursues the sniper. Quantico sends a geographic profiler to help identify him, but the killing of a young woman outside the probability zone casts doubt on that technique. As panic grips the Hampton Roads area, pressure mounts, and Kit soon finds herself in the crosshairs of failure-and death.