Marty: I know Doc, but I had to co-
Doc: But its good to see you, Marty.
They hug.
Doc: Marty, you're gonna have to do something about those clothes. You walk around town dressed like that and you're liable to get shot.
Marty makes a gesture around his neck.
Marty: Or hanged.
Doc: What idiot dressed you in that outfit?
Marty claps his hand on Doc's shoulder and smiles.
Marty: You did.
Cut to Doc's blacksmith workshop. It is full of the necessary things he needs for the job and also with a few inventions. Whilst Marty changes into real 19th Century clothes, Doc examines the tombstone with his magnifying glass.
Doc: (reading) "Shot in the back by Buford Tannen over a matter of 80 dollars!" September 7th! That's this Monday! Now I wish I'd paid him off. And whose this beloved Clara? I don't know anyone named Clara.
Marty: I dunno, Doc. I thought maybe she was a girlfriend of yours.
Doc looks at Marty as if Marty just said something very silly.
Doc: Marty. My involvement in such a social relationship, here in 1885, the result is a disruption of the space-time continuum. As a scientist, I can never take that risk, certainly not after we've already been through.
Mayor Hubert: (o.s) Emmett! Ho, Emmett!
Doc looks out the door.
Doc: Hubert! (to Marty) It's the mayor!
MAYOR HUBERT comes just inside the door.
Mayor Hubert: Excuse me Emmett. You remember last week at the town meeting when you volunteered to meet the new school teacher at the station after she came in?
Doc: Oh yes, quite so.
Mayor Hubert: Well, we just got word she's coming in tomorrow. Here are the details for you. Thanks for all your help.
He hands Doc a piece of paper.
Doc: Anytime, Hubert!
Mayor Hubert: Oh, her name's Miss Clayton. Clara Clayton.
As Mayor Hubert leaves, Doc realises who Clara is!
Marty: Well, Doc, now we know who Clara is.
Doc: Marty. It's impossible. The idea that I could fall in love at first sight? It's romantic nonsense. There's no scientific rationale to that.
Marty laughs.
Marty: C'mon, Doc, it's not science. You meet the right girl, it just hits ya; it's like lightning.
Doc: Marty, please don't say that!
Marty: That's the way it was for me and Jennifer. Man, we couldn't keep our eyes off each other! God, Jennifer, damn! I hope she's alright, Doc. I can't believe we just left her there on the porch!
Doc: Don't worry, Marty, she'll be fine. When you burned the almanac in 1955, the normal timeline was restored. That means once we're back in 1985, you just have to go over to her house to wake her up.
One of the giant machines - Doc's invention - begins making noises.
Doc: Oh, Marty, turn that valve over there all the way to the right. Yeah, turn it all the way around. OK, let's go!
The machine rattles, and a small brown cube similar to ice shoots out of a tube. Doc has put a plate there to catch it. Doc puts the ice into a cup of tea. He offers it to Marty.
Doc: Iced tea?
Marty: No, thanks.
As Doc takes a sup from the cup, Marty looks at the giant machine.
Marty: It's a refrigerator!
Doc: Well, I guess Miss Clayton will have to find other transportation.
He turns to face Marty.
Doc: If I never meet the woman, there's no possibility of a romantic infatuation, right?
Marty: You're the Doc, Doc.
Doc: Alright then. Let's get the DeLorean and get ourselves back to the future!
He puts his hat on. Marty speaks quite casually in the next line.
Marty: Oh Doc, I tore a hole in the gas tank. We'll have to patch it up and get gas.
Doc freezes and his expression changes. Something is wrong. Something Marty isn't aware of.
Doc: You mean we're out of gas?
Marty: Yeah, no big deal, we got Mr Fusion, right?