It''''s been nearly 20 years since the Virus first appeared, coming from nowhere and bringing humanity to the brink of annihilation. Once, there were ten heroes who rose up to fight the Virus, sacrificing their lives and souls to save just four human cities. But many of those heroes are dead now, and those that remain are scarred and broken, while the Virus continues its relentless rampage. Survival is a daily struggle, and humanity clings to the fractured remnants of a society constantly teetering on the edge of collapse.