4:30 PM PST
Doc Brown was out in his lab, working on inventing a device that would allow telepathic connections. He felt that the device should be completed within a week. Just then he heard a knock on the door. Doc then opened the door, and saw that it was Marty and - some blonde girl he had never seen before. Doc was quite surprised, as Marty have never brought guests, other than Jennifer, out to the lab.
'Well, Marty, what brings you here?' Doc asked. 'Who's that girl you're with?'
'First off,' said Marty, 'I'm not the Marty that you know. I'm Marty Junior, the son of your Marty.'
'I'm Harmony Brown,' explained the blonde. 'I'm your future granddaughter. Jules is my dad. I suppose you don't want to know who my mom is, right?'
'Great Scott!' exclaimed Doc. 'Tell me, have you guys interacted with anyone today, besides me?'
'Unfortunately, yeah,' said Harmony, sighing. 'We've decided to visit the 1980s, which happens to be our favourite decade. As soon as the clock read three, we've decided to head over to McDonald's for a bite to eat. Then people started to accost us, mistaking this Marty for the Marty of this time period.'
'Okay, who all have you interacted with?' asked Doc.
'First it was Douglas Needles and his gang,' explained Harmony, 'then it was Larry. Then Jennifer came in, accused Marty of cheating on her, even though I tried to tell her that I was Marty's cousin. Unfortunately, though, Jennifer didn't believe us. I'm afraid we've gotten the Marty of this time in a bit of trouble.'
'If Jennifer stays mad at dad,' Marty Jr said, sighing, 'and never forgives him, then they'll never marry, and then I'll be erased from existence.'
'Great Scott!' exclaimed Doc. 'We'll have to call up Jennifer, and explain to her what's going on. Fortunately, she already knows about time travel and all of that - otherwise, trying to convince Jennifer would be much harder.'
'I've just realized something,' Harmony cut in. 'Larry was a little surprised to see Marty at McDonald's - as she expected him to be at auditions with The Pinheads. Perhaps the Marty of this time was at auditions, as planned - and then he might have either tried to visit or call Jennifer. Then Jennifer must have blasted poor Marty out, confusing the hell out of him. I didn't realize that the Marty of this time may have already told Jennifer of his relatives. We honestly were not trying to make trouble for him.'
'So, how did you guys get here, anyway?' asked Doc.
'One day, I was a little curious about what was hidden in your lab,' Harmony explained. 'I know you've told me many times to stay out of the lab, but curiousity has gotten the better of me, when you and Grandma - Clara - have decided to take a week long vacation to Jamaica. Then when I've discovered that you've had a time machine, I decided to take the opportunity to visit the 1980s.'
'The 1980s is our favourite decade,' explained Marty Jr. 'We are a little disgruntled with our own generation. I really do envy Dad, who got to be a teenager in the 1980s.'
'When we were trying to hide the DeLorean in the park,' added Harmony, 'I accidently broke the Mr. Fusion generator.'
'So, then,' asked Doc, with some annoyance, 'why didn't you come to me right away and explain what had happened?'
'I figured you would have made us stay in your home, while you fixed the Mr Fusion generator,' Harmony admitted. 'I really wanted to see what Hill Valley was like in the 80s, though. I really wanted a taste of experiencing life as a teenager in the 80s.'
Marty Jr nodded in agreement, and added, 'I know many people have commented on how my father looked just like me, when he was teenager. I didn't realize, though, that I looked exactly like him - so much so that even Jennifer, my mom, would mistake me for him.'
'Okay, just relax, you two,' said Doc. 'I'm going to call up Marty and Jennifer, now.'
oooooooooo
Marty was still lying on his bed, crying, when his phone suddenly rang. Marty answered the phone, swallowed, and said, 'Hello?'
'Hey, Marty, glad you're home,' answered Doc. 'It's me, Doc.'
'Doc, do you know what's going on here?' Marty asked, as some more tears spilled down his cheeks.
'Yes, Marty, I know,' said Doc. 'Why don't you meet me at my lab, and I'll explain what's happening to you?'
'Thanks, Doc,' Marty replied, his voice snagging on a sob, as he hung up the phone.
Marty then sat on his bed for five minutes, trying to regain his composure. When he had finally stopped crying, Marty headed off to the bathroom to wash his face - and then comb his hair. Then Marty grabbed his skateboard, and car-surfed to Doc's house.
oooooooooo
'So what's the deal with Jennifer?' asked Marty Jr.
'Well, she did agree to come here,' explained Doc, 'so I can explain to her what is happening. She did seem really mad at Marty, as she was still convinced that he was cheating on her.'
Then there was a knock on the door. 'Yo, Doc, it's me, Marty!' Marty called out.
As soon as Marty stepped in the lab, he and Marty Jr looked at each other - and gasped. They were both wearing the same outfit! Literally the same outfit, that is - not just two identical outfits. Marty Jr's outfit was passed down from his dad. The two Martys then fainted.
'Great Scott!' gasped Doc.
'Wha-what happened here?' stammered Harmony. 'Why did the Martys pass out? They do look exactly alike, don't they?'
'Uh, Harmony,' suggested Doc, 'why don't you head into the house, go into the living room, and grab some clothing from the chest? Both Martys will have to change.'
After Harmony went into Doc's house, Jennifer walked up to the lab, stepped in - and saw two Martys!
'Doc! Doc! I guess you weren't kidding!' Jennifer exclaimed. 'Where did the other Marty come from?'
'The other Marty is Marty Junior,' Doc said, slowly. 'He's your son from the future. Harmony is, apparently, my future granddaughter - Jules' daughter. At least she was mindful enough to not tell me who her mother is, as that could have created a temporal paradox. I mean, Jules is too young right now to even be thinking about dating girls - let alone marrying one and having kids.'
'Yeah, he's only seven,' replied Jennifer. 'Oh, my God! Doc, are you telling me that I've just slapped my future son?'
'Yeah, yeah, you did,' stammered Harmony, as she had just returned with the clothing.
'Oh, goodness!' gasped Jennifer, I guess I now have no choice but to make up with Marty and marry him - or else Marty Junior will be erased from existence.'
'Are you still mad at Marty?' Harmony asked, worriedly. 'From your tone, it sounds like you're starting to resent him.'
'Oh, no, no, no!' stammered Jennifer. 'Of course I love Marty! I can no longer be mad at him, after finding out what happened. I do admit that I sorta resent having my choice taken away from me - but that does not mean that I resent Marty.'
'This, girls,' Doc said, grimly, 'is why time travel is not something to be taken lightly.'
'I'm sorry, Grandpa,' Harmony whispered, tears filling her eyes. 'It's just that I really wanted to visit the 80s. I envy the teens of this generation.'
'Really?' Jennifer gasped. 'Even with cool new things like hoverboards and the internet - you still wish you lived in the 80s?'
'Hoverboards are nice,' Harmony admitted, 'and so is the internet. Still, the music of our time sucks. Our generation is expected to like hip hop and that rap crap! Some people laugh at me, because I listen to rock and roll! In the 80s, it was considered cool to like rock and roll - but, where I come from, some of my peers laugh at me for liking rock and roll - and even some older adults who were teens in this decade refuse to take me seriously, and act like I'm just trying to give the impression of maturity or something. At least Marty Senior - we call him Martin, to avoid confusion with his son - is a cool man to hang around with, and someone who is not condescending of me for having 80s interests, just because of my age. Jennifer, I cannot help when I was born! Please inform the others of your generation to not be so possessive of their 80s culture - and to not be so condescending of those from the younger generation who also like the 80s culture!'
'Woah! Woah! Harmony! Harmony!' Jennifer gasped. 'Settle down! I am hardly a spokesperson of our generation. I'm just me, trying to make the most out of life. I'm sorry that some members of my generation are condescending of members of your generation for liking the 80s culture. I don't think that's right, okay?'
'Alright, girls!' Doc cut in. 'You two can discuss this later. Now we have to take care of the Martys.'