Frank Boston, retired Air Force Pararescueman, experienced two separate incidents involving three back-to-back deaths early in his Air Force career. He concluded after the second incident that he has a strange power he calls nose-smell, a sort of mystic instinct of seeing who will die in a group of related deaths. He goes years without using his ability until a small girl drowns in a pond on the nearby Air Force base. He knows two more water-related deaths will soon follow. Frank's mission: to identify the two future victims and prevent their deaths.