Radiation from the sun caused terrible damage to the environment and forced people to retreat underground, safe from the harmful effects of ultraviolet radiation. Vast subterranean cities evolved, but in isolation. Today, the only link between these underground cities is the old network of surface freeways now ruled by anarchic gangs of outcasts, known wholly as surface dwellers. The only people daring to make trips these days are the Overlanders. They are a breed apart. They keep themselves to themselves. Their only passion in life is their customized cars; pre-apocalypse vehicles dragged underground and rebuilt; rebuilt for speed and survival! They make journeys for cash, running cargo across the surface dwellers gauntlet. Life is improving the car, cargo's are carried for cash, cash means a better, faster, more powerful car...