8:05 PM PST
Calvin and Marty went outside, to look for Biff.
'All right, McFly,' snarled Biff, 'you're asking for it - and now you're gonna get it.'
'Quick, hide,' whispered Calvin, pulling Marty behind a bush.
Biff stepped out of the car. George tried to punch him - but Biff grabbed his arm and twisted it, causing George to let out cries of pain.
'Stop it, stop it, Biff!'' cried out Lorraine. 'You're gonna break his arm! Stop it!'
Marty and Calvin then stepped out from behind the bushes. George hit Biff in the face - causing Biff to fall down to the floor. George looked at his fist with a 'I can't believe it! I did it!' expression, and then he turned to Lorraine.
'Yes!' shouted Marty.
'There's a fight over here - come on, guys!' called out one of the students.
'Talk about deja vu,' Marty muttered.
'Are you okay?' George as Lorraine, as he helped her up and they walked hand in hand to the gym. A crowd, including younger Marty, had developed. Younger Marty checked his photograph and ran off. Marty went over to Biff, once his parents and his younger self have left.
'Okay, everybody, let's back up now,' called out Marty. "Huh, let's backup, just everybody back up. Give him a little bit of room, okay, a little bit of air. It's okay. I know CPR, I know CPR.'
Biff then began to woke up.
'Hey...' called out Biff.
'What's CPR?' asked Lester, confused.
Biff woke up, looked at Marty, and said, 'You!'
Marty punched Biff again, knocking him out, then grabbed the almanac out of Biff's jacket.
'He's fine,' said Marty, as he ran off to join Calvin.
'Hey, did you just take his wallet?' called out Lester. 'He just took that guy's wallet!'
'Doc, success,' Marty called to Doc, on his walkie-talkie. 'I got it!'
'Thank goodness!' exclaimed Doc. 'Great, Marty, as soon as I reload the fusion generator, I'll meet you on the roof of the high school gym.'
'On the roof, 10-4!' replied Marty.
Marty and Calvin had turned around the corner, and met with Biff's gang.
'Hey, it's him!' called out 3-D.
'Oh, there's two of them,' gasped Skinhead.
Marty knocked out Skinhead, while Calvin knocked out 3-D.
'Hey, punks!' Match snarled at Marty and Calvin. As Match reached out to punch Calvin, Marty kicked him in the shins - then Calvin punched Match in the face, knocking him out.
'Quick, Marty! Let's go!' urged Calvin.
oooooooooo
Just then, Biff was regaining consciousness.
'Where is he?' Biff asked
'Who?' asked Lester.
'Calvin Klein,' replied Biff.
'Who?' asked Lester.
'The guy with the hat. Where is he?'
'Oh,' said Lester, as he pointed towards the gym. 'He went that away.'
Biff ran to the gym.
'I think he took your wallet!' Lester called out, after Biff. Then, after he turned to the crowd, he repeated, 'I think he took his wallet.'
Back in the gym, younger Marty is still playing.
'Quick, hide!' Calvin said to Marty, 'here comes Biff.'
The twins then hid under the table.
After Biff ran into the gym, he muttered, 'How the hell'd he change his clothes so fast?'
Biff began to run up to the stage, where Marty's younger self was playing.
'Holy shit!' groaned Marty, 'He's coming after my younger self!'
'We'll have to stop him,' exclaimed Calvin.
Then the rest of Biff's gang regained consciousness, and they ran up to Biff.
'When he gets down, we're gonna nail him.' Skinhead proclaimed.
Marty and Calvin sneaked up behind the stage. Calvin spotted some sandbags above Biff's gang. The twins climbed the rigging above the stage and slowly crawled across it. Marty saw his younger self playing his guitar solo while he and Calvin, almost hidden, climbed along the top. They are unseen. The twins heard Marvin makes his phone call to his cousin Chuck. Marty and Calvin tried to untie the rope holding up the sandbags.
'Holy shit!' Marty whispered to Calvin. 'Marvin actually called up his cousin while I was playing Johnny Be Goode. This is heavy.'
'That song was not released until 1959,' Calvin replied.
'Holy shit!' exclaimed Marty. 'I didn't even realize that. That could have created a paradox.'
The twins finally finished untying the rope, and the bags fell on Biff and his gang.
'Oomph!' the quartet gasped.
At the point in time, the younger Marty went a bit overboard, and by the time he finished playing some rock music, the dance was silent, looking at him. As the twins climbed back down, the younger Marty looks at the crowd.
'I guess you guys aren't ready for that yet,' proclaimed the younger Marty, 'but your kids are gonna love it.'
Calvin smirked at the current Marty and said, 'Geez, you really are obsessed with rock and roll, aren't you?'
'Yeah, whatever,' mumbled Marty, not in the mood for his twin's joshing.
Then, after the twins left the gym, Marty pulled out his walkie-talkie, and said, 'Hey Doc, success, everything's cool.'
'Great,' replied Doc. 'I'll be landing on the school roof in about one minute.'
The twins exited through the door - as did younger Marty, but he saw Lorraine before he got to the door.
'Lorraine!' called the younger Marty.
'Marty, that was very interesting music,' Lorraine said, as the twins were watching their conversation through the door. 'I hope you don't mind, but George asked if he could take me home.'
'Great, good, good, Lorraine,' stammered the younger Marty. 'I had a feeling about you two.'
'I have a feeling, too,' replied Lorraine.
Biff appeared at the door, next to the twins - who were still watching the younger Marty and Lorraine.
'Hey butthead! You think that stupid disguise...' Biff started to say, then gasped, 'What the hell? Two of you?'
Calvin and Marty quickly pounced on Biff, and knocked him out.
The younger Marty exited the gym, slamming the door on his future self's head and causing the current Marty to fall over. Calvin was stunned for a second, then he lifted up the current Marty.
'What the hell was that?' asked Marty.
'Your younger self knocked you out,' explained Calvin. 'Quick, Marty, let's get out of here, now!'
Then the twins headed over to the back of the school, where Doc was hovering his DeLorean.
Doc saw the twins, and told them, 'Quick, boys, burn the almanac.'
Marty put the almanac into the bucket, then he took out a matchbox, lit a match and start to burn the book.
'Mission accomplished!' called out Doc.
Calvin and Marty then high-fived each other.
'Now let's go home!' said Doc.
'Right, Doc, let's get our asses back to the future,' agreed Marty.
Doc and the boys then stepped into the DeLorean. Doc accelerated the gas pedal until it reached 88 miles per hour, then the trio landed back in 1985.