Professional Hacker Hunter deceived powerful corporation and thrown in isolated underground colonies, which seized power over the former prisoner named Hacker. Being among the miners, the mutants ex-cons and the mysterious biologists, Hunter begins full of dangers way to the surface, parallel to learning about the tremendous and shocking plans self-proclaimed ruler of the underground.

Computer expert Hunter is hired by the Johnston Biotek corporation, just called “Corporation” in the game. Hunter is to repair the network of a mining complex but fails and ends up in an underground cave world after an explosion.