<p>Former Army Ranger Tucker Wayne and his military dog, Kane, are thrust into a global conspiracy in this second Sigma Force spinoff adventure from <em>New York Times </em>bestselling authors James Rollins and Grant Blackwood </p><p>Tucker Wayne's past and present collide when a former army colleague comes to him for help. She's on the run from brutal assassins hunting her and her son. To keep them safe, Tucker must discover who killed a brilliant young idealist--a crime that leads back to the most powerful figures in the U.S. government. </p><p>From the haunted swamplands of the deep South to the beachheads of a savage civil war in Trinidad, Tucker and his beloved war dog, Kane, must work together to discover the truth behind a mystery that dates back to World War II, involving the genius of a young code-breaker, Alan Turing . . . </p>They will be forced to break the law, expose national secrets, and risk everything to stop a madman determined to control the future of modern warfare for his own diabolical ends. But can Tucker and Kane withstand a force so indomitable that it threatens our future?