A mammoth twister tears through the sleepy town of Promise, Oklahoma, and leaves behind three mutilated bodies in a ravaged farmhouse. Police Chief Charlie Grover believes the victims were impaled by flying debris...until gruesome evidence comes to light, proving that they were brutally murdered. How could the killer predict exactly when and where a tornado would strike and use it to cover his tracks? With the aid of a tornado-chasing scientist, Charlie delves into a high-tech, high-risk search for a cunning criminal-one who may be stalking Charlie and his own daughter. For this is a predator unlike any other: one who conspires with the ferocious power of nature to commit and conceal unspeakable crimes.