Preceding the chapter content, a quiz site poses the question “Which Passenger are you?” and prompts users to answer multiple-choice questions to find out which trapped Passenger they would be.

In her car, Claire listens to the jury. Grieving and exhausted, she believes that her chance of survival is gone. A flashback reveals that six months earlier, doctors diagnosed her husband, Ben, with an inoperable brain aneurysm. To secure a larger life insurance payout, Ben asked her to move his body to his office if he died at home.

Four weeks later, Claire found Ben dead. She dressed his body, moved it to the car’s boot, and began planning an alibi. The Hacker hijacked her car before she could act. In the present, Claire’s water breaks, and she goes into labor.

As Matthew distributes water to the jurors, their tension is palpable. Fiona redirects the deliberation to Sofia. The jurors debate whether she was complicit in her husband’s crimes.

Fiona suggests that Sofia’s charity work, like Jimmy Savile’s, was a cover for guilt. The group discusses her motivations for protecting her husband. Muriel suggests that death might be a release for Sofia. A grim consensus forms, and the jury unanimously decides not to cast any votes to save her.

Inside her car, Sofia tries to ignore the broadcast by covering the camera. She drinks brandy, takes painkillers, and comforts her dog, Oscar. A flashback reveals her story: Forty years ago, she discovered that her husband, Patrick, was molesting her niece. To protect her career, she didn’t report him, instead sending him to therapy.

In addition, Sofia had herself sterilized to ensure that she would never have his child. Years later, Patrick threatened to expose her complicity if she spoke out. In the present, Sofia’s car is surrounded by a mob, which attacks the vehicle with stones and petrol bombs, setting it on fire.

The jurors watch as Sofia’s car is engulfed in flames. Libby condemns the public, while Matthew explains mob mentality. Fiona moves the deliberation to Sam. Jack dismisses Sam’s bigamy as a minor crime and declares that he’ll vote for him.

Libby, Muriel, and Fiona state that they can’t support Sam. Likewise, Matthew refuses to vote for him. With Jack as his sole supporter, Sam receives one vote.

Sam processes the revelation that his wife, Heidi, was extorting him. A flashback details his deceit: After marrying Heidi, he secretly married his true genetic match, Josie, and maintained two families, using a cover story about work travel. He decided that naming his and Josie’s daughter “Beccy” (ostensibly after his deceased sister), like his daughter with Heidi, would help prevent slip-ups. When his and Josie’s second child was a boy (like his second child with Heidi, named James), he pushed for the name “James” for the same reason.

Two months ago, his secret was exposed. Heidi began making expensive demands, and soon after, an anonymous extortionist contacted him for £100,000. Sam drained his business accounts, only now realizing that Heidi had orchestrated the entire scheme.

Fiona begins the discussion about Heidi. Muriel argues that Heidi is as deceitful as her husband. The conversation grows tense after Jack makes several misogynistic comments, antagonizing Matthew and provoking Libby. Libby defends Heidi as a working mother.

Angered by Jack, Fiona declares that she’s voting for Heidi, partly out of spite. In a show of solidarity, Matthew also votes for Heidi. The vote count is now two for Heidi, while Sam and Claire each have one.

Heidi sits numbly in her car. A flashback reveals her discovery of Sam’s secret life. Using police resources illegally, she uncovered his deception. Rather than confront him, she began a campaign of revenge, creating fake dating profiles to expose him and then extorting him for £100,000.

Before the money was to be handed over, she followed Josie to a hospital, where Josie revealed that she had cancer. Overcome with empathy, Heidi abandoned her plan, realizing that Josie needed Sam more. In the present, she finally weeps.

Fiona asks for Libby’s final vote. Libby decides that she can’t condemn Jude for his mental illness and casts her vote for him. The final jury tally is two votes for Heidi, and one each for Jude, Sam, and Claire. The Hacker asks Cadman to reveal the public’s vote results.

Cadman reports that while the most popular hashtag is to save Heidi, combined support for Jude is overwhelmingly higher. This creates a tie between Heidi and Jude. The Hacker announces that one juror must change their vote, or all remaining Passengers will die.

Muriel, Matthew, and Fiona refuse to change their votes, leaving Jack with the deciding power. He taunts Libby, demanding that she beg him to save Jude. On his screen, Jude signals for her not to, but Libby begs Jack. Jack gives a cruel speech before changing his vote from Sam to Heidi. His decision breaks the tie in Heidi’s favor and condemns Jude to death.

Enraged, Libby lunges at Jack, but Matthew restrains her. The confrontation is cut short by a scream from Claire’s video feed.

The jurors see that Claire is in labor. Jack dismisses it as fake, but Muriel pleads with the Hacker to release her. The Hacker states that only the chosen survivor, Heidi, can be saved. When Libby asks the Hacker if the jury can change its vote, the Hacker permits it. Jude gives Libby a consenting look, and she, Matthew, Fiona, and Muriel all switch their votes to Claire.

Jack refuses to change his vote. The Hacker confirms that Claire is now the survivor and will be released. He cryptically adds that Libby has misunderstood his motives, revealing that everything is because of Jack.

A story published on a Birmingham, UK, news site prefaces the chapter content, reporting the removal of metal fencing surrounding the former factory site that experts anticipate is the Hacker’s planned collision location.

The Hacker demands that Jack reveal how driverless cars are programmed to make life-or-death decisions. When Jack refuses, the Hacker exposes the system, revealing that the UK’s network is a lie. In an unavoidable collision, a car’s software scans personal data to determine a person’s value to society. The car is programmed to sacrifice the person with the lower social rating.

The Hacker broadcasts classified documents as proof, showing that Jack helped create this system. Jack finally speaks, defending the practice as a modernization of the class system necessary to protect society’s most valuable members.

Prefacing the chapter content, a news site warns that the images it is about to stream require parental discretion and may disturb some viewers.

Satellite and drone footage show the collision site as the five hijacked cars converge. All the jurors except Jack join hands to watch. Libby focuses on Jude’s screen. He looks into the camera, and they share a final, silent exchange.

News anchors report that Claire’s car hasn’t stopped. Just before impact, all five cars execute a sharp, choreographed turn, skidding to a halt and averting the collision.

The jurors stare in confusion as emergency services approach the five stopped vehicles. On the live feed from technicians’ body cameras, the jurors see the car doors unlock. Sam and Heidi Cole emerge and are escorted to safety. Claire Arden is helped from her car on a stretcher.

A technician finds Sofia Bradbury unconscious but alive, and her dog, Oscar, escapes unharmed. Finally, another technician opens Jude’s car, revealing that the interior is empty. His rucksack and belongings are gone.

Libby and the other jurors stare at the image of Jude’s empty car. Fiona notes that all his belongings are missing. Libby has a horrifying realization: Jude was never a Passenger. At that moment, driverless vehicles at the rescue scene begin crashing into parked cars and crowds.

News reports confirm that similar collisions are occurring across the country. From inside the inquest room, the jury hears shattering glass from the street below. Libby understands the Hacker’s true plan: The Passengers were a distraction for a massive cyberattack on the nation’s driverless infrastructure.