Synopsis:
Following Henry's announcement that the Alchemist's Curse contagion has mutated into deadly flesh-eating bacteria, the Global Dynamics defense computer kicks into action, locking some people in and keeping others out. It transforms Allison's office into a panic room by lowering it far below Earth's surface and sealing it off completely. Sheriff Carter and Nathan Stark work together to try and stop the progression of the virus and save Allison's son.