A leader has fallen, and the procession route from Capitol Hill to the White House is lined with hundreds of thousands of mourners. None feel the loss of a President more keenly than Alex Cross, who has devoted his life to the public good. A sniper's bullet strikes a target in the heart of DC. Alex Cross's wife, Bree Stone, newly elevated chief of DC detectives, faces an ultimatum: solve the case, or lose the position for which she's worked her entire...

Detective Alex Cross is thwarted at every turn while he attempts to investigate the abduction of the president's son and daughter and also discovers a deadly contagion released in the capital's water supply that foreshadows a larger, more devastating attack.

When a prominent Washington D.C. police official is murdered, Alex Cross steps in to investigate but his efforts are impeded by a series of deadly attacks by a vigilante killer who is targeting suspected criminals.