Alaska's group got caught smoking and got sentencing. The group got sentencing for 10 hours in the cafeteria. (This scene is important because it shows what characters choose to do. The sentencing brings them closer together.)
Miles and Alaska are spending the Thanksgiving together. After spending most of the break with Alaska, Miles realizes that he is falling in love with Alaska more and more. (This is important because a big part of a book is about their romance.)
Alaska died from a car accident after leaving the campus. She ran into a police car that had stopped another car. She did not break so everyone though she committed suicide. (Alaska is one of the main characters and this is a shocking plot twist. Miles and Colone knew Alaska would never commit so they searched around.)
I'm Colonel. Meet my friends!
Miles finds out that Alaska ratted out Paul and Myra and got them expelled. They were from a different group, so the fact that Alaska ratted them out made things between the groups even worse. Alaska trust Miles so much so that's why she told him.
Miles decided to leave his public school and go to a boarding school that is away from his home; Culver Creek Boarding School. This is how the whole story stated and this is where Miles's new life ''started''.
Miles meets his roommate, Colonel who then introduces him to Alaska and their friends. This is when the friendships started.