Go to the ends of the earth and back with the elite scientists of Sigma Force as they race to crack the ultimate mystery of mankind, a quest that will save or destroy us. From the frozen peaks of the Himalayas to the diamond fields of the Congo, from the subterranean labs of a lost era to the glittering halls of the Smithsonian, Sigma Force will face its most cunning adversaries, its most daunting challenges, and its most dire threat to unravel our most perplexing scientific mystery - the origins of life - a secret locked within cryptic runes. And the very future of mankind will belong to the victor. For any hope of success, former U.S. Navy SEAL Painter Crowe, head of the counterespionage team, must make a pact like no other: to align Sigma Force with an old enemy. And it will be up to Commander Gray Pierce to find the balance between salvation and damnation, even it if means sacrificing those closest to him. But victory is far from certain, for there are some riddles that even the greatest minds were never meant to solve...