Marty: Yes!
He watches Doc and Clara fly off. Marty then notices it's almost time! He shuts the car door and puts his hat on. The DeLorean reaches 87mph. We cut to the display panel. The camera does a close up: OCT 27 1985. The speed reaches 88 and the DeLorean heads into the future. The train reaches the end of the bridge, falls into the ravine and explodes. There is a great cloud
of smoke.
OCTOBER 27, 1985
The smoke fades away and we see the bridge as it is in 1985. The three sonic booms are heard and the DeLorean coasts safely across the bridge. It passes by a billboard for "Hilldale: Hill Valley's Newest Homes - You'd Be Home By Now" - and travels through a level crossing (railroad crossing) which has the barriers down and lights flashing. Marty looks at the people in the cars, who are giving him strange looks. The DeLorean stops just beyond the crossing.
A diesel horn is heard. Marty looks up and sees a diesel train about to collide with him.
Marty: Shit!
The door won't open, but Marty gets out just in time.
Marty: Argh!
Marty is still in the air when the collision occurs. The DeLorean smashes into pieces, and the train continues with its journey. Marty sees the time circuits, they clicker one more time before they go dead - forever.
Marty: Well, Doc, it's destroyed.
Marty lifts his head.
Marty: Just like you wanted.
Marty goes home. He runs past the Lyon Estates signs and stops outside his garage. The door is open. Marty walks over to his truck but is stopped by a voice.....
Biff: (o.s) Hey butthead! Get away from-
BIFF comes out of the garage. He's back to how he was at the end of Part 1. He's once again waxing Marty's truck.
Marty: Watch it, Biff.
Biff recognises Marty and starts speaking to him in a much nicer tone.
Biff: Marty! I - I didn't mean to scare ya! I didn't recognise you in those clothes!
Marty: What the hell are you doing?
Biff: Uh...just putting on the second coat now! You going cowboy, huh?
Biff gives Marty a quick thumbs-up, as DAVE opens the front door and comes out. He looks at his watch.
Dave: C'mon, guys, we're gonna be late for brunch!
He's followed by LINDA. Both are dressed up smartly.
Linda: Come on, Dad, they won't hold your reservations all day!
GEORGE & LORRAINE leave the house. Dave and Linda continue talking to each other.
George: I can't find my other glasses! Lorraine, have you seen my glasses?
Lorraine: They're in your suede jacket, honey.
Lorraine notices Marty - the first to do so.
Lorraine: Marty? What's wrong? We thought you went to the lake.