Our caravan travels through ancient ruins in search of resources and answers ... What has changed our planet beyond recognition and made it so hostile? This is a very dangerous mission that specially trained soldiers and scientists are embarking on. At their disposal are weapons and equipment created by the best minds. Small groups explore the destroyed cities surrounded by impassable wilds of the mutated forest that cover most of the remaining habitable territories and infect all living things around. However, this may not be the worst thing that might happen in the way of travelers. Huge strongholds erected by artificial intelligence appearing around the world on the cities they destroyed, storing unique technologies and sources of inexhaustible energy, but also guarded by hundreds or thousands of nanonite soldiers. Our travelers were lucky to find several of these, and now they have to go to the den of the invaders in the hope of returning home not empty-handed.