There was an explosion, and they have to evacuate. The elevator is still stuck. They're going to have to wait for the main generator to come back on so they can get the elevator back up and running again. They don't have enough oxygen in the air to fight the fire, so they shut off the air in the control room. They can't wait any longer, says Naruse, the mask maker. He says he's going to make up for his failure twenty years before. He wants to be the one who releases the human race from the darkness. He tells Naruse that the elevator will be back up in five minutes. He'll go straight back to the main elevator once the generator comes back on.