Marty McFly got behind the wheel of the DeLorean. "Do you have any idea what you are supposed to do, Marty?" Doc asked.

"Of course, Doc. I've seen you do this many times."

Marty pushed in the numbers '12, 1955' and the month 'November.' "Hold on tight, Doc!"

The DeLorean climbed up to 88 mph and disappeared. All that was left were some burning tire tracks.

Marty bolted up in his bed grabbing his head and he whispered, "Doc! Doc?" Marty looked around the room and saw he was in his Hill Dale home in Hill Valley. Jennifer lay beside him.

"Marty? Are you ok?" she asked.

"Yeah, I just had a weird dream."

20 years earlier, Marty, Doc, Einstein, Jennifer, Biff, and some others had their ride in the DeLorean. The memory, though exciting, was pushed from Marty's mind. Marty had forgotten about Doc and his wife Clara, they had no way for contact considering Doc lived in 1905 and now Marty lived in 2005.

Jennifer went back to sleep and Marty heard one of his children in the next room over. Marty got up and went to his son's room. There, Marty Jr. was sitting up in his bed playing with his handheld video game system.

"Whatcha doin', son?" asked Marty.

"Playing games. I couldn't sleep. This usually makes me sleepy," Marty Jr. answered.

"Yeah. I just had a weird dream. I don't think I will be able to sleep now either. You wanna go watch a movie with me down stairs?"

"Sure." They got up from Marty Jr.'s bed and went down the stairs to the first floor.

"You know, tomorrow is a school day so technically I shouldn't be doing this but hey, what do I care."

"Thanks dad."

Marty Sr. turned on the TV and flipped through the channels. There were no good movies on.

"Hey, can't we just watch a FJT?"

"A what?"

"You know, instead of a DVD or VHS? A FJT!"

"Yeah, what ever."

Marty Jr. went over to the video library and pulled out 'Jaws 18.' Marty put the FJT in the FJT player and pressed the 'play' button. The FBI warning was just beginning when a loud and obnoxious train whistle sounded about a mile away. Marty thought nothing about it considering there were train tracks half a mile from their house.

"Dad?" Marty Jr. asked.

"What son?"

"Why is there a train outside?"

Marty jumped up from his seat on the couch and ran over to the front window. "It can't be!" he said.

"Dad!" Marty Jr. yelled.

"It can't be, it can't be," Marty said over and over again as he unlocked the front door went outside. "Oh, it is."

From inside the train, which was now parked in Marty's front lawn, emerged Doc and his wife Clara. Jules and Verne came out after them.

"Marty!" Doc yelled.

"Doc! What are you doing here?" Marty yelled.

"DAD!" Marty Jr. yelled.

"I haven't seen you in, um, twenty years! I thought it was time for a reunion."

"Gee, Doc, it's great to see you again."

"What have you been up to these last twenty years?" Doc asked.

"DADDDDADDD!" Marty Jr. yelled louder.

"WHAT?" Marty yelled back.

"I'm going to bed." Marty Jr. ran back inside and slammed the door shut.

"I've been busy having kids. I've got two. But you already knew that. We already saw them in 2015," Marty explained.

"Ah, yeah. I remember them, I think."

Clara came over and she was holding three duffle bags. "Are you going to help me with these or am I going to have to take care of them myself?"

"Oh, let me get those for you." Doc took the bags and put them on the ground next to him.

"Well, I coulda done that myself," she said. She picked up the bags and carried them inside Marty's house.

"What is going on? What are you doing here besides the reunion?" Marty asked getting confused.

"Well, here's the problem," Doc started. "The problem is, um, oh, I can't remember. Jules, Verne? Do you remember?"

They both nodded their heads and followed their mother inside Marty's house.

"What? You don't remember?"

"No! That's the problem!" Doc yelled throwing his hands in the air.

"So you can't remember things?"

"No."

"Why?"

"I don't know."

They went on like that for a few minutes until someone yelling out the window on the second floor interrupted them. "Marty? What is going on out there?" Jennifer asked.

"It's Doc!" Marty yelled back.

"Oh, tell him I said hi." Jennifer left and went back to bed.

Marty looked back at Doc who had disappeared. "Doc? Now where did you go, Doc?"

"Over here, Marty! Look at this thing!" Doc was pointing to the flux capacitor attached to the train.

"That's the flux capacitor, Doc."

"Oh? Is that what it's called?" Doc said. "I have been trying to figure out what that thing is called all night."

"Woah. This is heavy," Marty said.

"What do you mean by heavy? Is something wrong with the Earth's gravitational pull?" Doc asked as he went into Marty's house.

Clara, Jules, Verne, and Marty Jr. were setting up cots in the living room. "What is going on in here?" Marty asked.

"We are going to spend a week or so with you," Clara said.

"O…k…" Marty said scratching his head.

Clara put her hand on Marty's shoulder. "Doc has hit on his head with a big rock the other day. He has amnesia."

"Amnesia?"

"Yeah. Did you know that he forgot about you for the longest time. He never mentioned your name until that rock hit his head. He kept saying, 'Let's go see Marty!' So, here we are!"

Doc was setting up his own cot near the door and was muttering, "It's been a long time, Marty, a long, long time."

Marty went over to Doc. Doc looked up from his cot and said, "So, what have you been up to these last twenty years?"

Marty raised an eyebrow. "You asked me that already and I said I was having kids."

"Oh, yeah. You know what I was doing?"

"What, Doc?"

"Traveling the world! I got to see the Declaration of Independence get signed, I saw the first man on the moon, I even got to see the dinosaurs. All thanks to the Y shaped gizmo on the side of my train out there."

"The flux capacitor?"

"Yeah. That thing." Doc got this funny look on his face and he said, "Great Scott!"

"What, Doc?"

"I invented that flux thingee!"

"Yeah, you did."

"I forgot that…" Doc said lying down on his cot and falling asleep.

Everyone was laying on their cots so Marty went up the stairs to his own bed. He decided to talk to Doc in the morning when everyone was awake the next morning.

Jennifer was laying across the bed with the covers on the floor. Marty picked up the covers and moved Jennifer over so he could lay down.

"Amnesia. Doc has amnesia. If he has amnesia, why did he 'remember' me?" Marty asked himself.

Suddenly, there was a big boom and the train was gone.