Book 1

The Kill Switch

by James Rollins and Grant Blackwood

Published 13 May 2014

Who does the U.S. government call upon when a mission requires perfect stealth, execution, and discretion? Meet the newest recruits to the expanding Sigma Force universe--former Army Ranger Tucker Wayne and his stalwart companion, Kane, a military working dog of exceptional abilities -- in:

THE KILL SWITCH

The mission seems simple enough: extract a pharmaceutical magnate from Russian soil, a volatile man who holds the secret to a deadly bioweapon. But nothing is as it appears to be. A conspiracy of world-shattering scope unravels as Tucker and Kane struggle to keep one move ahead of their deadly enemies.

From the frozen steppes of Russia to the sun-blasted mountains of South Africa and Namibia, a biological threat millions of years in the making strikes out at the heart of America. All that stands in the way from a global apocalypse: one man and his dog. But can even Tucker and Kane thwart an ecological menace out of the ancient past to save the world's future?


Book 2

War Hawk

by James Rollins and Grant Blackwood

Published 7 January 2016
"Former Army Ranger Tucker Wayne and his war dog Kane are thrust into a global conspiracy that threatens to shake the foundations of American democracy in this second exciting Sigma Force spinoff adventure from New York Times bestselling authors James Rollins and Grant Blackwood. Tucker Wayne's past and his 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. From the haunted ruins of a plantation in the deep South to the beachheads of a savage civil war in Trinidad, Tucker and Kane must discover the truth behind a mystery that leads back to World War II, to a true event that is even now changing the world. and will redefine what it means to be human. With no one to trust, 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 very future?"--

"The second in an exciting Sigma Force spin off series featuring rogue agent Tucker Wayne and his military working dog Kane from the new collaboration of New York Times bestselling authors James Rollins and Grant Blackwood"--