Recruited by Sigma Force to extract a Russian pharmaceutical magnate, who holds the biological key to a new weapons system, from Siberia, former Army Ranger Tucker Wayne and his military working dog Kane must solve an ancient mystery before the modern world suffers a fate worse than death.

"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...

The Taskforce is used to being the hunter, but this time they're the hunted. Intent on embroiling the US in a quagmire that will sap its economy and drain its legitimacy, Russia passes a potential weapon of mass destruction to Boco Haram, an extreme Islamic sect in Nigeria. A relic of the Cold War, the Russian FSB believes the weapon has deteriorated and is no longer effective, but they are wrong. Boco Haram has the means for mass destruction, which...

A yacht bearing a young American couple is attacked by Somali pirates, leading to bloodshed and the violent kidnapping of the pregnant woman on board. To aid in her rescue from the lawless and war-torn jungles of coastal Africa, Sigma Force enlists the aid of a unique search team.

"In this groundbreaking masterpiece of ingenuity and intrigue that spans 50,000 years of human history, New York Times bestselling author James Rollins takes us to mankind's next great leap. But will it mark a new chapter in our development. or our extinction? A war is coming, a battle that will stretch from the prehistoric forests of the ancient past to the cutting-edge research labs of today. In the remote mountains of Croatia, an archaeologist...

A breathtaking blend of scientific intrigue and historical mystery reveals an ancient threat hidden within the pages of the Bible, one that threatens the modern world. When a British archaeologist who had been missing for two years reappears, frantic and delirious, but dies before he can tell his story, Sigma Force must stop an ancient plague with ties to some of history's most innovative minds.

"In the latest military thriller from the retired Delta Force Operator and New York Times bestselling author, a hostage situation places America's most powerful political elite at the mercy of its worst enemies. When veteran operator Pike Logan and partner Jennifer Cahill receive a letter from Blaisdell Consulting-the umbrella cover company for their real employer, a top secret counterterrorist unit called the Taskforce-they expect orders for their...

"A top Russian intelligence agent has defected to the West and the only man with whom he will speak is Kyle Swanson, who busted him out of the U.S. Marine Corps Scout/Sniper School years ago. The defector proves to be an Edward Snowden-type gold mine of amazing secrets about the When, Where and How of President Vladimir Pushkin's next grab for lost Soviet territory.But Swanson, now a special contractor with the CIA, soon begins to believe that it...