FBI arrives at Caliche Springs. Imran testifies about the consortium of defense contractors who hired Victor. Lyle wakes in safe house with Kate, accepts his new life.
Kate carries Lyle from rooftop. Sisters reunite with emotional callback to their pre-deployment kitchen-floor ritual. Helen reveals Victor's clients were defense contractors who lost Markwell bid. Kate extracts Lyle before FBI arrives. Helen stays to testify.
Victor sets up drone command post. Helen and Imran discover target is families. Imran wrestles with the cost of defiance—his daughters' safety vs complicity in murdering children—then sabotages the backdoor. Victor shoots him. Helen coerced into firing sequence.
Kate fights Francis in brutal close combat, eventually shattering his knee with a beam and executing him. Meanwhile, Jack triggers the fire alarm in the target apartment to evacuate civilians, but William spots and shoots him. Jack flees through the building and streets with William in pursuit.
Kate, Lyle, and Jack arrive at the abandoned office building near Caliche Springs. Lyle assembles a makeshift EMP device from hardware store parts on the roof while Kate provides support. Jack heads down to warn civilians in the target area.
Victor forces team to relocate to Caliche Springs. Helen hacks both Markwell and Air Force networks from the van. Victor orders hijacking of all five border patrol drones. Kate and Lyle approach from opposite direction, identify target via Ashton Constructing shell company.
Kate and Lyle regroup at hotel. Jack reveals Caliche Springs target. Kate connects dots - town shelters Middle Eastern defectors JanCorp relocated. Imran Hyderi built Markwell backdoor under duress via shell contractor, tried to close it with three unauthorized patches reverted by corporate.
Kate and Lyle raid warehouse to rescue Jack family. William guards with personal stake - brother David with cerebral palsy needs care money. Intense firefight, tranquilizer takedown, family rescued. William asks about trust fund for David post-mission.
Kate and Lyle locate the warehouse where Jack's family is held. Kate's lock pick breaks on an industrial deadbolt, forcing improvised entry through a ventilation panel.