Shirly wonders whether they are hearing Juliette’s voice from the past. Walker tells her that they must be hearing it in real time, meaning Juliette is still alive. They want to answer her, but Walker, not anticipating that they would need it, has left the transmitter in his workshop.

He tells Shirly that the mining storehouse should have transmitters. Shirly starts to go there, but Jenkins tells her that they are planning to blow up the stairwell in five minutes to stop the invading deputies and security guards from IT. Shirly, newly obsessed with reaching Juliette and buoyed by the idea that it’s possible to survive outside the silo, runs as fast as possible to make it in time. In the mining storehouse, she rummages through the offices for a while before finding the transmitters. She runs back and barely makes it in time, getting thrown forward to the floor by the force of the explosion behind her.

Juliette pulls herself up by the empty air hose in the complete darkness, bumping into surfaces and feeling disoriented. She reaches the stairs and pulls herself up six flights through Mechanical. Still hundreds of feet underwater, she realizes she is out of air.