SAMANTHA NEALLY is in hiding. Abandoned by her mother at eleven, she was implicated in an ecoterrorist firebombing at eighteen. Since then, she's been living in the Nevada desert, lonely and afraid. But all that is about to change when undercover FBI agent Joe Roper turns up. He insinuates himself into her world and sends her to jail. Forced to turn state's evidence, Sam goes to work with Roper. Laying a trap for her former friends, she's unaware that the real danger to her life lurks in the desert, someone ready to commit murder to keep her quiet.