The year is the 2017th In an underground research facility is an experiment horribly wrong. All communication with the earth's surface is broken and the eight survivors, the choice between the barricade yourself and hope that help will come before the food runs out, or getting up for the thirteen floors leading to the surface. The only question is what is hardest: to starve or to face the hordes of hungry, mutant, flesh-eating creatures that now has taken over the station?