Chester: There's a fella that can't hold his liquor.
Marty: Gimme some coffee... black.
Chester: (calling to his assistant) Joey, coffee!
Marty looks out the window. The clock is outside. It's 7.45. 15 minutes to go. We cut to a road, where Buford and his gang ride towards Hill Valley. We then cut to the train station. Clara is at the ticket office, speaking to the CLERK.
Clerk: Ma'am.
Clara: How far does the 8 o'clock train go?
Clerk: San Francisco's the end of the line.
Clara: I'll take a one way ticket.
Back in the saloon, Marty feeds Doc coffee, but it isn't working.
Chester: You want to sober him up in a hurry, son, you're gonna have to use something a lot stronger than coffee.
Marty: Yeah, what do you suggest?
Chester smiles as he calls to JOEY, his assistant.
Chester: Joey. Let's make some wake up juice.
Joey and Chester set out a variety of ingredients as they make the wake-up juice.
Chester: In about 10 minutes, he's gonna be as sober as a priest on Sunday.
Marty: 10 minutes?
Marty again looks at the clock. It is now 7.50.
Marty: Why do we have to cut these things so damn close?
Chester walks over with a funnel, clothes peg and the glass of liquid.
Chester: Here, stick this clothespin on his nose, and when he opens up his mouth, go ahead and pour it on down his throat. Oh, and stand back.
Marty does as Chester says, but nothing happens. Suddenly Doc stands up, opening his eyes and jumps up!
Doc: Wah! Hot! Hot!
Doc runs out and crashes into the horse trawl, filled with water. He doesn't move as Marty, Chester and Joey run after him. They lift him out and look at his face.
Marty: He's still out!
They bring Doc back into the saloon.
Chester: Oh, that, that was just a reflex action. It's gonna take a few more minutes for the stuff to really clear up his head.
Marty: Perfect.
Cut to the station. Clara boards the train. Cut back to the saloon. Seamus enters as Marty and Chester are slapping Doc's face to wake him up.
Marty: C'mon, Doc, c'mon...wake up, buddy. C'mon, wake up, Doc, c'mon, c'mon.
Chester: Seamus. Wouldn't expect to see you here this morning.