Doc flies the DeLorean down a street, lets the wheels down and lands, driving normally to a house - Jennifer's. It parks in her driveway. He and Marty get out, carrying Jennifer. Neither of them notice the wrecked car in the driveway. They put her on her porch swing during the following:
Doc: Let's put her in the swing! Then I'll take you home and you can come back in your truck and wake her. When she awakens here in her own house and it's dark, you should be able to convince her it was all a dream.
Marty: Wait a minute, we're just going to leave her here on the porch?
Doc: The disorientation will help convince her that it was all a dream.
Marty: How long do you think she's gonna be out?
Doc: I'm not sure, she received quite a shock. Could be for a few minutes, most probably a couple of hours. You'd better bring some smelling salts with you.
Marty: Well you're the Doc, Doc.
Doc: Right. Let's go Einie.
Doc and Einstein walk towards the DeLorean. Marty stays where he is looking at Jennifer. Doc turns around to face him.
Doc: Don't worry, she'll be fine.
Marty walks after Doc and notices bars on the windows.
Marty: I don't remember bars being on these windows.
Cut to the Lyon Estates signs. The DeLorean drives through them into the estate. A pack of stray dogs run across the road after the car passes. The DeLorean drives down the street and stops at Marty's house. Trash is everywhere and most of the houses on Marty's street are empty/boarded up/have got "For Sale" signs in the front gardens. Marty opens the door and gets out of the DeLorean.
Doc: If you need me, I'll be in my lab, dismantling this thing.
Marty: Right.
Marty closes the door and Doc drives off. Marty goes to the side gate and tries to open it - but there's a padlock.
Marty: (surprised) What the hell?
Marty climbs over the gate. Cut to his bedroom window. Marty quietly opens the window. He steps inside, but trips and falls onto the bed. The light is turned on and Marty sees a young girl, LORETTA, in his bed! Except it's not his bed, this room is completely different!
Loretta: Ahh! Ahh! Ahh!
Marty: Hey, hey, hey, wait, wait a minute, what are you doing in my room?
Loretta: Mom, Dad, help me!
Marty: Wait a minute, wait a minute, OK, OK!
The door bursts open and Loretta's DAD enters. He's carrying a baseball bat.
Dad: Freeze sucker!
Marty: It's OK, I don't want any trouble!
Dad: Well, you got trouble now you piece of trash!
Loretta's MOM enters and stands by the doorway. With her is their other child, HAROLD. Dad tries to hit Marty with the bat but breaks some of his daughter's things instead. Loretta is still crying.
Dad: What are you doing in here with my daughter?
Marty: Hey listen, I'm just in the wrong house!
Dad aims again - and misses again.
Harold: Go get him Dad!
Dad: You got that right!
Dad aims again.
Marty: Hey look, I made a mistake!
Dad: You're damn right you made a mistake!
Dad aims again.
Marty: Argh!
Marty crawls out of the room.
Harold/Loretta: Get him!
Cut to the front door. Marty runs out of the house, and the family chases him until they stop at the end of the front yard.
Marty: Argh!
Dad: Right, you keep running sucker, and you tell that realty company that I ain't selling, you hear? We ain't going to be terrorised!
Marty runs down a street. Things are very different to how he remembered. In the distance he hears gunshits and screaming. At a corner there are the outlines of two murder victims. Marty runs down another street and three police cars drive past in the background.
Marty: This has got to be the wrong year.
Marty sees a house. He runs over and picks up the newspaper. He reads out the date - October 26th 1985.
Marty: 1985? It can't be.
Strickland: (v.o) Drop it.
Marty looks behind him to see MR STRICKLAND wearing a nightshirt with a bullet-proof vest on top. He's got a gun and pointing it at Marty.
Strickland: So you're the son of a bitch who's been stealing my papers.