The Kill Switch - Tucker Wayne, Bk 1 Author:James Rollins, Grant Blackwood Former Army Ranger Tucker Wayne and his military working dog Kane are recruited by Sigma Force to extract a Russian pharmaceutical magnate from Siberia. A scientific genius, the drug tycoon holds the biological key to a new weapon system, a danger engineered from the ancient past to terrorize the modern world. — From the frozen steppes of Russia ... more »to the sun-blasted savannahs of Africa, Tucker and Kane must piece together a mystery going back to the origins of life on Earth -- before the ancient peril can destroy the heartland of America, and with it, all of humankind.« less