3019 A.D. Earth civilization has made incredible technological progress. The earth’s magnetic field was gradually weakening, the increased radiation background promoted mutations, and the hyper metabolism of all life forms. People built a huge andron collider surrounding the planet, hoping to align the earth's magnetic field and restore eco-balance. On the supporting nodes in the form of huge cities, all the main scientific and technological potential of mankind was concentrated. After the trial launch of the mega collider, the impulse killed all life within a radius of 1000 km from the perimeter. The remaining people living in inaccessible places were forced to populate the empty cities. They belonged to a lower caste that did not have access to the technology of large cities. Physically strong, but poorly educated people are trying to master the remaining equipment, to understand the technologies that allow you to launch a mega collider to save the Earth from imminent death. To do this, they established channels for exchanging resources between cities. The path along which is always associated with mortal risk, since the external biosphere is trying to capture more and more territories, feeling like a mistress on this planet.