Plot: Having completely exhausted the natural resources of the planet, and not having found a suitable practical alternative, the leaders of the planet decided to construct automated underground mega-complexes of "artificial sleep and life support" near the main population centers. To preserve the species, millions of people worldwide were placed in these systems and put into a state of artificial sleep for an indefinite term, leaving the monitoring of changes in the surrounding environment and the patients sleeping inside to the complexes' robotic systems