Long before these events…
Having completely exhausted the natural resources of the planet
without having found suitable and practical solutions,
various world leaders decided to construct several automated,
underground mega-complexes for “artificial sleep and life support”
near the largest civilian centers.
To preserve the species, millions of individuals were placed
inside these systems and put into a state of artificial sleep
for an indefinite amount of time. The monitoring of these “patients”
and the surrounding environment were left to the complexes’ automating systems.