Marty watched as his father, George McFly, went to the car and opened it. "Hey you." he heard him say, "Get your damn hands off-off..." "I think you've got the wrong car, McFly." said Biff's voice. "George." said Lorraine's voice, "Help me. Please!" George reeled back in fear. "Just turn around, McFly, and walk away." said Biff's voice. George hesitated. "Are you deaf, McFly?" demanded Biff's voice, "Just close the door and beat it!" "No Biff." said George, "You leave her alone." "Alright, McFly." said Biff as he emerged from the car, "You're asking for it and now you're gonna get it." He grab George by the arm and started twisting it.
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Doc and Calpurnia hid behind a pillar as they watched the Starlighters wear using a crowbar to pry open the trunk door in which the first Marty was in. At last, it was open. One of them, Marvin Berry, cringed in pain as Marty got out and gave the keys to another Starlighter before heading off.
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Marty kept watching Biff twist George's hand when Lorraine came out of the car saying "You're gonna break his arm." Biff refused to listen. "Biff. Biff! Leave him alone." said Lorraine pounding his arm, "Let him go! Let him..." Biff pushed her down and started laughing. In the distance, Marty could see his other self come out from Mr. Strickland's office. Meanwhile, angered by what Biff did, George made a fist with his free and hit Biff square in the jaw. Biff spun before dropping to the ground. George almost laughed as he looked at the palm of his hand before looking at Lorraine saying "Are you okay?" Marty looked towards the gym and saw his first self show up. Turning back to the Packard, he could see George pick up Lorraine and head towards the gym as Marty's first self turned and ran back to the Starlighters.
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Doc and Calpurnia looked on as the first Marty returned saying "Hey guys! You have to get back in there and finish the dance." "Hey man! Look at Marvin's hand." said one of the Starlighters, "He can't play with his hand like that and we can't play without him." Marty turned to Marvin saying "Look Marvin! Marvin, you've gotta to play. You see, that's where they kiss for the first time on the dance floor. And, if there's no music, they don't dance. They don't dance, they don't kiss. If they don't kiss, they don't fall in love and I'm history." "Hey man!" said Marvin, "The dance is over unless you know someone who can play guitar." Marty paused for a minute before saying "I can." Marvin looked at Marty before saying "What do we got to loose." Marty smiled and followed them in.
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After the couple left, the second Marty showed up saying "Okay, everyone. Let's back up. Let's back up. Let's just everybody back up. Give him a little bit of room, a little bit of air. I know CPR. I know CPR." As he was hovering over Biff, someone next to the second Marty asked "What's CPR?" "You!" cried out Biff. The second Marty punched him, reached into the coat pocket and got took the Almanac. "He's fine." said Marty. "Hey." the guy next to him said, "Did you take that guy's wallet?" Marty didn't answer. He just left.
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Staying behind, Doc and Calpurnia watched as they saw the second Marty on the walkie-talkie talking to the second Doc. In his hand was the Alamanac with the will still inside it. Then, Biff's gang showed up saying "Hey! It's Calvin Klein. He's in disquised." Marty pointed to a spot saying "Hey look." They did and Marty bulldozed them and fled. Doc and Calpurnia turned to enter the gym. Once inside, they saw the second Marty enter the gym by another door. The song, "Earth Angel" was finished by then. Then, that same door opened and Marty slipped under a table. At that door, was Biff's gang looking for him. Then a voice said "Hey! Let's play another one." It was from Marvin Berry. But then, the first Marty said "Naw. I've gotta go." "Let's play something that really cooks." said Marvin. "Something that really cooks." repeated Marty. Looking back at Biff's gang, Doc and Calpurnia saw that they had spotted the first Marty. Then, the first Marty said "Alright. This is-uh this is an oldie, well it's an oldie where I come from." Turning to the band, he said "Alright guys, this is a blues rip in 'B'. Watch for the changes and try to keep up." At once, he started playing "Johnny B Goode". Doc turned to look at Calpurnia as the dancing was kicking into high gear to the music. He assumed that she's never seen this kind of dancing before in Rome, not even during the Lupercal. Then, the two saw Biff's gang cross the gym and headed towards the door to the stage.
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Marty was still hiding behind the car when he heard Biff say "What the hell?" Getting to his feet, he demanded "Where is he?" "Who?" asked one of the bystanders. "Calvin Klein." said Biff. "Who?" asked the same bystander again. "Calvin Klein." repeated Biff, "The guy with the hat. " "Oh him." said the bystander pointing towards the gym, "He went that away." Biff was turning towards the gym as the bystander was saying "I think he took your wallet." Turning back to the rest of the crowd, he said "I think he took his wallet." Marty turned to follow Biff.
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Doc had Calpurnia and himself hide behind the one of the wings of the stage. In front of them were Biff's gang ready to jump the first Marty when the second Marty climbed up a side ladder to the overhang. Meanwhile, Marty was doing his Chuck Berry imitation while he continued playing "Johnny B Goode." Using his binoculars, Doc could see the Almanac sticking out of his coat with the will still inside. The second Marty kept crawling and crawling towards the sandbags that were hanging over the gang.
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Marty was barely started for Biff when he heard a voice saying "There he is." Marty turned to see the group of bystanders starting towards him. "Hey." said one of them, "Are you Calvin Klein, the guy Biff was looking for?" Marty paused. "He's looking for you." the same bystander said, "Where's his wallet?" Marty pointed to an empty space saying "Over there." The bystanders turned to look. As they did, Marty turned to run out of their sight. Unfortunately, he ran into Biff. "Okay, butthead." he said, "Let's have it..." "Biff, look." said Marty as he pointed to another empty space. As Biff did, Marty punched him and fled around the corner to the gym. Then, he headed back out to the cars and hid.
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The second Marty got the sandbags, loosed the rope and let the sandbags drop on the unsuspecting trio. By then, the first Marty stopped the music and looked out. The dancing had stopped and the guests were just looking at him. "I guess you weren't ready for that." he said giving the guitar back to Marvin, "But your kids will like it. I guarentee it." At that moment, the second Marty landed the sandbags on the trio again and left. Doc and Calpurnia followed the second Marty to the door as he was on his walkie-talkie to the second Doc. "Hey Doc." he said, "They're down. Everything's cool." "Great." said the second Doc's voice, "I'll be landing at the school roof in about one minute." "I'll be there." said the second Marty as he left. Doc and Calpurnia opened the door to the broom closet and hid.
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Marty was still hiding when he saw Biff looking for him. Then, the second Marty came out and Biff started after him.
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The first Marty was coming down when he ran into George and Lorraine. "Lorraine." he said. "Marty." she said, "That was very interesting music." "Ah..yeah." said Marty. "I hope you don't mind," said Lorraine, "but George asked if he could take me home." "Great." said Marty, "Good, Lorraine. I have a feeling about you, too." "I have feeling too." said Lorraine. "Listen, I've gotta go." said Marty, "But, it's been educational." "Marty." said Lorraine, "Will I ever see you again." "I guarentee, it." said Marty."Well, Marty." said George, "I wanna thank you for your good advice. I'll never forget it." "Right, George." said Marty has he and George both shook hands.
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The second Marty was standing at the door when Biff approached him. "Hey butthead." he said, "Do you think that disguise would get pass me? Let's have it out. You and me right now." Marty turned to Biff saying "No thanks." He turned to leave. "Where are you going?" demanded Biff. "Home." said Marty. "What's the matter?" asked Biff, "Chicken?" Marty stopped in his track. "That's what you are." said Biff, "I big chicken." Marty turned to approach Biff in anger.
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Marty turned to leave saying "Well, good luck you guys." He paused for a minute before saying "Oh, one other thing. If you guys ever has kids. And if one of them, when he's eight years old, accidentally sets fire to the living room rug, go easy on him." "Okay." said George. At that, Marty left.
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Angered at Biff's remark, the second Marty said "Nobody calls me chi..." Boom! The door opened and out popped the first Marty, landing the door on the second Marty who dropped to the ground.
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In the broom closet, Doc said "That's our cue, Calpurnia. Let's go." Carefully opening the door, the two looked around. "Marty." said Lorraine's voice, "What a nice name." Sneaking a peak, Doc and Calpurnia waited until George and Lorraine went back into the gym. Then, producing his sleep inducer they both went to the door.
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Biff looked at the person who left. And then, he looked at the second Marty. There in his coat pocket was the Sports Almanac. "What the hell?" he said. Reaching in, Biff pulled out the book and thumbed through the pages. "You stealing my stuff?" he demand. Immediately, he kicked Marty. Then, he did it again saying "And this is for my car." Having regained his ill-gotten trophy, Biff headed back to his car and took off. The second Marty got up and looked. At that moment, Doc came out and used the sleep inducer on him. With the second Marty sleep induced, Marty came out of hiding. "Okay, Marty." said Doc, "My other self should be on that rooftop now. Go up there and follow Biff." "Right, Doc." said Marty, "Meet you at the construction site." "Oh Marty." said Doc, "We'll try to be there before the Western Union man shows up. If we're not there with this you when my other self says 'Burn it!', burn that book." "Right, Doc." said Marty. "Now go get that will." said Doc. At that, Marty went up the stairs to the rooftop. Turning to the second Marty, Doc reached in and took out a newspaper and a book of matches. Examining the paper, Doc saw it change. Where it once read "GEORGE McFLY HONORED" now read "GEORGE McFLY MURDERED". Looking at the matchbook. One side said "Biff's". But on the other side, where it once read "AUTO DETAILING" now read "PLEASURE PARIDISE". Calpurnia looked over his soulder saying "What does this mean, Emmettus?" "It means that my worst fear has happened." said Doc, "The time line has skewed into that awful tangent where in my own time, Biff has complete control of Hill Valley." They looked at each other. Now, it was up to Marty to not only succeed in getting the will, but to make sure that the book was burned.