Allison Boyle always thought of herself as a normal teenager, then she overheard a phone call between her mother and a father she had long thought dead. A conversation that opens up the door to her parents' past and her own genetic heritage, a heritage that is anything but normal. When that heritage erupts in the death of a classmate, Allison finds herself on the run from the police and from a shadowy group of watchers. Her only hope is in tracking down her long-absent father, who may himself be part of the orginazation that is hunting her down.