Marty:
Doc: Does it mention me? Am I one of the 12?
Marty: Just a minute.
Doc: Look ... the William McFly family. Your relatives?
Marty: My great-grandfather's name was William.
Marty: That's him. Good looking guy.
Doc: McFlys...but no Browns!
Marty: Look, Doc, maybe it was mistake. Maybe that grave wasn't yours. There could've been another Emmett Brown back in 1885. Did you have any relatives here back then?
Doc: The Browns came to America in 1908, and then they were the Von Brauns. My father changed our name in World War I.
Marty: Doc! Look!
Doc: Oh! Great Scott! It's me! Then it is true. All of it. It is me who goes back there - and gets shot.
Marty: It's not gonna happen Doc. After you fix the time circuits and put new tires on the DeLorean, I'm going back to 1885 and I'm bringing you home.
Doc: The clothes fit?
Marty:
Doc: Of course. Haven't you ever seen a Western?
Marty: Yeah, I have Doc, but Clint Eastwood never wore anything like this.
Doc: Clint who?
Marty: That's right....
Marty:
Doc: Marty, you have to wear the boots. You can't wear those futuristic things in 1885. You shouldn't even be wearing them in 1955.
Marty: All right, Doc, look. Once I get there I'll put them on, I promise.
Doc: OK, I think we're about ready. I put gas in the tank, your future clothes are packed, just in case fresh batteries for your walkie-talkies. Oh, and what about that floating device?
Marty: Hoverboard.
Doc: Alright.
Marty: You know Doc, it's gonna be a hell of long walk back to Hill Valley from here.
Doc: It's still the safest plan. After all, we can't risk sending you back to a populated area, or to a spot that's geographically unknown. You don't want to crash into some tree that once existed in the past. This is all completely open country! So you'll have plenty of run-out space when you arrive. Remember where you're going there are no roads. There's a small cave over there which will be a perfect place to hide the time vehicle. Well, the new time circuit control tubes are warmed up!
Doc: Time circuits on. I wrote the letter on September 1st, so we'll send you back the very next day. September 2nd, that's a Wednesday. September 2nd, 1885, 8am.
Doc: I get shot on Monday the 7th, so you have 5 days to locate me. According to my letter I'm a blacksmith, so I probably have a shop somewhere. All you have to do is drive the time vehicle directly towards that screen accelerating at 88 miles per hour.
Marty: Wait a minute, Doc. If I drive straight towards the screen, I'll crash into those Indians.
Doc: Marty. You're not thinking 4th dimensionally! You'll instantly be transported to 1885, and those Indians won't even be there.
Marty: Right.
Doc: Well, good luck, for both of our sakes. See you in the future.
Marty: You mean the past.
Doc: Exactly!
Doc: Happy trails Marty! Ready Marty?
Marty: Ready!
Doc: Set!
Marty: Hi ho silver.
Doc: Viya con dios!
Marty: Indians! Argh!
Marty: The cave!
Marty: Shit, the cavalry!