You have only one objective, to escape from Black Mesa and regain your freedom! You must escape the Nightmare before you! The researchers threw the battered and beaten test subjects into a specimen treatment cell in the Cell Block Sector… and left them there to die. They were captured and brought to a laboratory, where the researchers conducted psychotic tests and "unnecessary analysis" on them. At around 0200, a group of scientists was attacked by another group of researchers. A few scientists even went mad, destroying special equipment and harming other personnel. Scientists were slowly disappearing and the entire facility seemed to be falling to its knees. The strangest of events began to occur following the events of the resonance cascade at Black Mesa.