The scientist announces a lock down for the whole facility, warning the site of multiple Euclid and Keter containment breaches. Trying to survive the horror of the containment breach, D-9341 (the Player) will encounter many different SCPs.
His voice will be cut off after saying the door controls are not working as intended and the room will black out, flickering back on when SCP-173 kills the 2 Class-Ds. Once inside, the chamber door will close, but will mysteriously open later. The Scientist will tell them to enter the containment chamber and approach SCP-173. As 9341 arrives, there are two other D-Class personnel. After picking up a document containing details of an 'exciting one month-working period' in a top secret facility, a Guard opens up the cell and tells 9341 to come out and perform a test with SCP-173. The game starts out with D-9341, a D-Class personnel, in his cell.
WARNING: The following may contain spoilers about the game.
