You know you want me to give it to you. Marty tells George about his plan to get him to rescue Lorraine from Marty's staged advances. Later in a parked car with Marty, Lorraine tells him that she likes to park and that it's not her first time. Lorraine shows some cleavage in her low-cut dance dress. Some musicians get out of a smokey car.
Some students smoke outside a dance.
School bullies and standing up to them. Several terrorists show up and shoot Doc Brown with a machine gun and then chase Marty and shoot at him as well and crash their van into a small building. Marty is hit by a car and knocked unconscious. Lorraine smacks Biff for pawing at her. Biff and Marty push each other in the cafeteria and get ready to punch one another, but they're stopped.