SEM is an AI and control unit of an ark. The ark consists of a gigantic high-tech machine and contains all human data as well as a genetic database. The goal is to make the earth habitable again after the end of humanity. To do this, SEM sends drones that detoxify the earth with a fungi. But the ark is infected by a computer virus, which leads to a complete shutdown. Ultimately, however, a new form of life developed from the fungi.