A United Nations relief team in a small village in the Congo makes an alarming discovery. An unknown force is leveling the evolutionary playing field. Men, women and children have been reduced to a dull, catatonic state. The environment surrounding them has grown more cunning and predatory, evolving at an exponential pace. The insidious phenomenon is spreading from a cursed site in the jungle --- known to locals as the Kingdom of Bones --- and sweeping across Africa, threatening the rest of the world. What has made the biosphere run amok? Is it a natural event? Or, more terrifyingly, did someone engineer it? As Commander Gray Pierce and Sigma Force race to find answers, they quickly realize that they have become the prey.