After the disastrous C.I.D.-contamination in 2104 large areas of planet earth are still uninhabitable and the sun is still beclouded. There are no national structures left. Security companies like Polyradah Corp own and run the big cities. To secure them, Polyradah Corp controls the inhabitants and the permission to live there. Non-conformable citizens of Polyradah are detected and persecuted by the silver skulls, the security troop of Polyradah's CEO David Corash. Polyradah is surrounded by suburban slums called Enyradah. Crime, chaos and fear rule that world. The officially contamination-free Enyradah borders on Trisoma, the contaminated zone, a place where no one ever came back.