Former Army Ranger Tucker Wayne and his war dog Kane are thrust into a global conspiracy in this second Sigma Force spinoff adventure from #1 New York Times bestselling author James Rollins and Grant Blackwood.

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.