Johnny is rushed to the hospital after getting rescued from the fire. He's in pretty bad shape.
Stay gold pony-boy
The war between the soc's and the greasers has gotten even worse because of the death of Bob and the injury to Johnny. so they decide to have a big fight between gangs. The greasers take the win.
Pony-boy gets to see johnny for the first time. Hes not looking to good. The nurse comes in to tell Johnny that his mom is here to see him but he says he doesn't wanna see her because of how bad of a mom she is.
Johnny and his Brothers go to see Johnny one more time to see how hes's doing. Johnny pulls Pony-boy close to him and with his last breathe tells him to stay gold. Johnny dies which crushes Pony-boy.
Dallas was so upset about Johnny's death that he ran out of the hospital robbed a store and got the cops to shoot him dead.
Pony-boy receives a letter from Johnny when he opens his book. Johnny tells him how he felt and that Ponyboy should always be true to himself. He basically tells Pony-boy his last words and what he wanted everyone to know. Reading this letter makes Pony-boy want to tell his story. So he writes a book which is thsi book.