In an apocalypse, there is definitely a beginning where mistakes are made and the seeds of evil are allowed to sprout and take shape. However, an end is not so certain. Once an apocalypse occurs, not even death is certain. Sometimes, death is only the beginning.
At first light that morning, Dr. Lee steps into the Walton facility on the first day of human trials and can barely contain her excitement. The labs are brand spanking new and everything is sharp and clean. They've been built to her specifications and are a scientist's dream. It's where cancer is going to be cured once and for all.
By midnight, it's a place of fire, of blood, and of death - a death that, like the apocalypse, is seemingly never ending.