Even after everything that happened, today is looking to be a good day in Biff Tannen's life
It had already been on a trajectory towards a bad day a few nights ago when an "alien" calling himself "Dark Invader" tricked him into canceling his date with Lorraine Baines. And then he had to pay three hundred dollars to get a whole load of horse shit out of his Ford convertible.
It was then that an old man gave him Gray's Sports Almanac.
It is a book that has sports statistics for the next forty-five years. He had heard the old man about how UCLA would win a football game, and he heard it right from his car radio.
And the day got better. He learned that the "alien" was some punk transfer student named Calvin Klein, who had pulled that prank just to take Lorraine to the dance. Indeed, he caught "Dark Invader" inside a yellow Packard with Lorraine.
Making up for that lost date did not go exactly as he intended, as a series of improbable events led him to be knocked out in one punch by George McFly, of all people. Then Calvin came when he was unconscious and stole the almanac from him. He later recovered the almanac and gave Calvin Klein his just desserts.
He hears more sports results from the Ford's radio and then glances at the Almanac's entry for November 12, 1955.
The old man was right.
It is then that he sees someone reaching into the passenger seat and grabbing the almanac.
Instinctively, the teenager grabs the almanac. They struggle, and the almanac flies out in front of the windshield. Angrily, Biff sideswipes some bushes to get his assailant off the car.
He looks ahead. He is rapidly approaching the tunnel, the tunnel through which he had driven for over a year to get between his home and school. He steers the Ford to the concrete surface of the tunnel, and the right side of the car scrapes against the concrete, sparks flying off like Roman candles.
He looks to his right, and his assailant is not there anymore.
"That'll take care of him," he says.
Gray's Sports Almanac is now in front of the windshield. He releases the gas pedal and reaches over the windshield to retrieve the book. That book could guarantee his future. He has to have it.
He glances at the rearview mirror, and he sees the assailant, who is, not surprisingly, Calvin Klein. He elbows the kid, hoping to knock him off of the board on wheels that he is surely using to ride along with the car.
He sees a truck going in the opposite direction, and swerves to avoid it. For a fraction of a second he thinks the almanac flew off; Biff is relieved to find the almanac still on the windshield.
Did that get rid of him?
Biff glances to his left and sees Calvin. He swerves to the left, hoping to force him between the car and the tunnel wall.
Then he sees Calvin Klein jump over the Ford and grab the almanac.
He immediately hits the brakes and swerves the car around. The Ford is now outside the tunnel. He looks straight at Calvin, dressed in a long coat and hat.
He revs the engine of the Ford. He can see the thief going towards the other end of the tunnel.
You won't be fast enough.
Biff shifts to first gear and releases the clutch pedal, steering straight towards that kid who had caused so much trouble for him ever since showing up at Hill Valley High. He laughs as he upshifts and gets closer to Calvin, his Ford now a missile aiming straight at his tormentor.
I got you now, punk.
Suddenly, Calvin flies straight up just as he reaches the end of the tunnel. Biff looks up and sees some strange flying machine carrying Calvin Klein away.
"He really is an alien!" exclaims Biff.
And then he crashes into the truck, and is greeted with a load of manure.
He never sees "Calvin Klein", "Dark Invader", or whoever that was in school again.
And he never sees the almanac for at least forty-five years.