The plot in the book is to poison the world. When the poison is added to the fuel is used to power vehicles it will result in toxic gas that will instantly kill those who inhales it. This is a plan to bring the world to a standstill and to go green through the use of violence. These radicals believes the earth is overpopulated and they have to reduce the population using poison. Jack is a member of these radicals. Karim is an agent of Saudi Intelligence and he works to stop these radicals.