A year after the death of her son Alex, Mary Towne is convinced she's seen him alive - and wants missing persons investigator David Raker to find him. Reluctant at first, but haunted by a loss of his own, Raker eventually agrees.

    . . Welcome to Safe Haven, Wisconsin. Miles from everything, with one road in and out, this peaceful town has never needed a full-time police force. Until now . . . A helicopter has crashed near Safe Haven and unleashed something horrifying. Now this merciless force is about to do what it does best. Isolate. Terrorize. Annihilate. As residents begin dying in a storm of gory violence, Safe Haven's only chance for survival will rest with an aging county sheriff, a firefighter, and a single mom. And each will have this harrowing thought: Maybe death hasn't come to their town by accident . . .