In the near future humans will face the very real threat of extinction.  Either natural or man-made it will come to pass.  This is an account  of what may happen.

Forced to dwell hundreds of miles underground, in an abandoned U.S. archive, they fight to live.  This installation still contains all the necessary previsions needed for survival.  A self sufficient complex, far removed from the vigor of life topside.  It is equipped with generators, a constant replenishing air supply, even waste management.  A perfect habitat for the evolution of the last species on Earth, Man?