In the future, a reconstructed society finds and rebuilds Aperture Laboratories. A test subject, thousands of years old, wakes up from a coma inside the new Aperture. She has one goal: escape....

Having escaped the main testing segment of the facility, the subject travels through old, unrestored rooms and offices, looking for a chance to escape. THIS IS NOT THE FIRST MAP! THERE IS AN INTRODUCTION, DOWNLOAD THAT ONE FIRST!...