The exposition it is how the book starts. The book starts off by showing us that firemen at the time made fires to burn books. The first seen was the firemen burning a house that had books in it and the owner of the house which was a woman.
The women/owner of the books had the option of leaving the house before it got burned. She decided she wanted to stay with her books and die. Montag gets surprised and takes a book. Betty, his chief notices and talks about how books are bad.
Montag meets a girl named Clarisse. She starts talking about life and how they don't notice many things. She makes Montage question life and if he is happy or not.
Montag starts reading books and saving them. He hides them and his wife knows about them. He read the books once to his wife and her friends and they got mad. His wife later on told and Betty his caption found out about the books and made Montag burn his house.
Montag kills Betty and runs off with as many books as he can save.
When Montag was still in the city running away, the city gets bombed and he escapes.