Mankind has lost a 300-year war against a genetically enhanced race that man created, abused and tortured. Now, the descendants of that race - known as the Ghen - control Earth from advanced underground cities. Humans work on the surface as slaves, but pockets of resistance carry on the fight. A Ghen politician takes power and urges his people to annihilate the remaining human population. Doing so, he unearths a shocking secret that will change the world forever.