The scene is when Ponyboy got attacked by the Socs after he came back from the movie all alone. Soon after the other greasers came to the rescue and scared the Socs away and then helped Ponyboy.
This scene is from chapter two when the two Socs, Marcia and Cherry are sitting watching the movie. Dally puts up his feet on Cherry's chair acting "cool" and offering a coke.
This is a scene from chapter three when Darry hits Ponyboy in the face because he was mad. Dally was mad because Ponyboy had been out all night and he did not know where Ponyboy was. Pony and Darry were both mad and suddenly, Darry hit Ponyboy.