Knox responds to the uproar in Mechanical as if it were another crisis to manage, but this time his people are preparing to break things rather than fix them. He assigns work with military precision: Walker is to warn Supply by wire under the cover of a repair delivery, Jenkins is left in charge of keeping Mechanical running while discreetly stockpiling food, water, locks, and improvised weapons, and Knox's foremen are to accompany him upward with supplies. When Courtnee questions what comes after striking at IT, Knox makes clear that Mechanical already sustains the silo and now intends to expose what IT has hidden.

Knox leads a small, heavily burdened group up the stairs toward Supply. Along the way, the strain of carrying welding gear, pipe stock, and blasting powder slows them, and Knox notices that rumors about Juliette's astonishing disappearance are spreading openly from landing to landing. The stairwell is increasingly tense, with arguments breaking out among residents and Deputy Hank trying to calm one confrontation. As they pass the dirt farm and approach Supply, Knox thinks strategically about self-sufficiency and a possible fallback position if open conflict with IT begins.

At Supply, McLain and her workers greet the delegation with suspicion and anger rather than solidarity. McLain assumes Knox has come to apologize for the tape sabotage and to answer for Walker's role, and she treats the incident as an irresponsible offense rather than a revelation. Knox accepts responsibility for not seeing the truth sooner, but he shifts the conversation by explaining that IT took one of his workers for cleaning and that Walker and unnamed helpers gave Juliette a chance to survive. He argues that Juliette's survival proves IT has lied, that the equipment given to cleaners is designed to fail, and that the silo has accepted deadly rules without ever testing whether they were true.

Knox then broadens the moment into a political appeal. He says Mechanical has not come to spread chaos but to end an old, ongoing uprising built into the silo's system of fear and sacrifice, and he insists that joining together gives them a chance against IT. After openly denouncing the taboo around the outside and declaring that life beyond the silo may be less rotten than the life within it, Knox believes he has gone too far when McLain recoils and turns away. Instead, McLain asks her workers to decide for themselves, and Supply erupts in angry support for Knox, turning his appeal into a major gain for the rebellion.