The plot of Fahrenheit 451 is set against the backdrop of an impending war. Most of the people are completely unconcerned about this, as they are absorbed in the programs that are displayed on their television walls. When Montag leaves the city in what one scholar has called a "rational decision" to go into exile, avoiding the manhunt, he discovers a group of people known as "book covers." These people have memorized books to recite for rewriting after the end of the war, as society is rebuilt. Montag is with these people when atomic bombs annihilate the city at the end of the book.