In this scene, the red Corvair that belongs to the Soc's pulls up to Ponyboy on his way home from the movies. Five Soc's then get out and are getting ready to jump him. Pony sloutches and puts his thumbs in his pockets thinking he might be able to escape if necessary. He tries to keep his cool as the Soc's approach him and then pull a blade out.
This is the scene where Dally has just given Cherry and Marcia a coke and Cherry is about to throw it on him. Cherry and Marcia are Soc's but are at a drive in for the Greasers. They have no car because they left their boyfriends because they had brought booze with them. Dally is being mean to Cherry so Cherry is being mean to him but Marcia is just watching the movie.
The final scene is when Pony gets home from the movies at 2:00 AM instead of his curfew of 12:00 AM. He gets home and explains how he fell asleep in the lot but Darry is very angry at him for being so late. When Pony gets home, he realizes that Darry is sitting on the chair reading a book while waiting for him and that Soda had fallen asleep on the couch. When Sod wakes up, he tries to defend Pony but when Darry starts to yell at Soda and Pony defends him, Darry slaps Ponyboy in the face.