A mysterious hacker hacked into the control systems of eight self-driving machines, which have recently become the norm for all residents of the UK. Now he is threatening their passengers with death. His hostages include a fading TV star; illegal immigrant; a young pregnant woman; husband wife riding separately; a military conflict veteran; a man wishing to commit suicide; a wife escaping her tyrant husband. Built-in cameras broadcast their panic to millions of viewers around the world. And now those millions must take sides. Because the hacker has already opened the vote: "Which of them will survive at the end? And who will die first?"