Back at the secret secret Initiative lab, Adam sits in front of a control station, powering down the building. On the monitors, we see him wait until two scientists enter the containment area before he unlocks the cells and announces, "This will be interesting." Not if you've got anything to do with it, buddy.
In the containment labs, red lights flash and the universal red-alert noise clangs. The doors to the cells open and the demons rush out. One of the only other female Initiative scientists that we've ever seen drops her clipboard and tries to run but is tackled by a demon. The camera focuses on her clipboard which is suddenly sprayed with blood.