Logan regains consciousness in a sealed ICU bubble at Denver Health, in severe pain from broken and cracked ribs, lacerations, and a previously collapsed lung. Dr. Singh explains his injuries and the quarantine due to a possible exposure during the basement explosion. After brief morphine relief, his condition worsens as a high fever spikes, prompting cooling measures.

Through delirium and hallucinations of swirling DNA bases, Logan fears he was targeted with a viral payload meant to rewrite his genome. He speaks with his wife Beth and daughter Ava over a speaker, anchoring him amid escalating symptoms. That night, his fever surges again; staff administer cold packs and interferon as he hallucinates being the virus invading his own cells.

Director Edwin Rogers visits, confirming the trap: the explosion turned ice spheres into shrapnel that punctured Logan’s suit, delivering a synthetic influenza. Sequencing shows the virus carries a Scythe genome-editing payload. Nadine is quarantined but asymptomatic. Soren claims he only made a delivery and offers a handle; Rogers plans to charge him. Tests are underway to determine whether Logan’s DNA has been edited.

Logan begins interferon gamma and new antivirals, improving after one more fever. Ava and Beth visit in hazmat; Ava plays daily chess and Beth urges Logan to reconsider the dangerous job he does out of obligation. Logan reflects on his abandoned dream of genetics and his perceived limitations.

Two weeks after admission, Dr. Singh enters without a suit, declaring the virus has run its course. Rogers calls to confirm DNA analysis shows no detectable edits. Logan is discharged from quarantine, reunites physically with Beth and Ava, and prepares to return to his life.