As soon as the clock went midnight, some students' arms started moving on their own. Then, their other arms started moving, and pushed up the students. At first Dib was relieved and triumphant that the students were okay.
"Ha!" he cried, looking over at Zim with a victorious glare. "Mankind has..." But he stopped short when one of the students looked up at him. Then he stopped short. The student's pupils were gone, leaving nothing but white holes. Gaz saw this too and drew her breath in in surprise. The students-now-turned-zombies started toward Dib and Gaz to try to eat their brains out, but Zim just stepped between the zombies and the captives, calmly took out a remote and pressed a button on the remote. Immediately all of the students-now-turned-zombies stopped and bowed down before Zim. Dib was disgusted. "You...what did you do to them?" Zim only smirked at Dib and explained, "Well, I must as well tell you what has already happened. You see, like I told Gaz, I made the beer that I later served at my party. However, I put an extra ingredient that no other human tongue would detect, a dangerous chemical I created known as Gadolinium Cuprochloride. This chemical could make a normal human brain forget everything about itself and think only one thought: Eat. Of course, that's not all these new zombie minions of mine think. You saw me implant chips into the heads of the students about ten minutes ago. These chips gave the brains another thought: serve Zim and only Zim." Zim pressed another button on his remote and the zombies immediately obeyed Zim, untying Gaz and Dib from their bounds but still keeping a hold on the two teens. Dib was dumbfounded. However, Gaz was curious about this chemical.
"Does this chemical wear off?" she asked, praying that Zim would be stupid for one moment and tell her yes, revealing a weakness to his plan. However, Zim didn't get smart so he could get stupid all over again. Zim shook his head and only replied, "Sorry. I could tell you but I won't." That was when the computer came in and told Zim, "The other armies are ready, and wait for your order."
"Excellent," said Zim. Then he turned to the zombies and commanded, "Lock up the Dib-stink into one of the strongest cells I own." The zombies were about to carry out his order when Zim stopped them and said to Dib, "Now, Dib-stink. Let me make this quite clear to you. I will take over this Earth whether you want it or not. Should you try to stop me, well..." Zim took out the last bottle of his zombie-transforming beer and pointed it at Gaz. "Your sister might not be the same as you knew her." Shocked that Zim had already thought this part through, Dib finally decided to say something, but the only thing he could think of was to say,
"You'll never get away with this, Zim." As they carried him off, Zim only shook his head and replied, "And yet he can't think of anything better to say." Zim then looked at the remaining zombies and ordered, "Tie up little Gaz and make sure she's tied tight. I want her to come with me as I take over this pitiful planet." The zombies nodded and immediately started tying her up. As they tied her tight, Zim threatened Gaz, "Now, little Gaz, I didn't say that this bottle," he held it up so she could see it, "was meant for you. Try to interfere with my plans, and who knows, maybe your brother or father will want to taste your brains..." The thought of it soaked into Gaz's brain and she shuddered at the thought. Damage done, Zim and the tied-up Gaz climbed aboard a giant vehicle. Zim pressed a button on the vehicle, then pressed a button on his remote, and the vehicle rose out of Zim's base. Gaz was appalled, yet amazed at what she saw. Thousands of zombies (and not just students) lined the streets, setting houses on fire, kicking cats, hurting dogs, and scaring the poop out of children. Countless numbers of zombie apocalypse organizations lined up and almost fired when they recognized some of the zombies as their friends or children or wives or husbands. Eventually, they found they couldn't fire, so they retreated.
"Beautiful, isn't it?" Zim asked Gaz. Gaz was surprised that he even spoke to her, so she didn't respond instantly. However, Zim continued, "Now I must ask you, little Gaz, are you still hating mankind so much that you would wish it destroyed or invaded?" Gaz, at first, had no idea what he was talking about, but then she remembered. The last time Zim was here, Gazwas an evil little dwarf who desperately wanted mankind to be destroyed or invaded. But now, she realized, that mankind is still stupid, but they have a chance, so she calmly answered, "Not as much anymore." Zim nodded in understanding and continued watching the chaos unfold.
Meanwhile, Dib was trying to think of a plan that would save mankinds' butts, again. But Zim's threat of poisoning Gaz with the gadolinium cuprochloride still lingered in his mind. Dib reassured himself that if Earth was to be saved, then sacrifices had to be made. But, the other part of Dib's mind countered, Gaz is his sister, and the cuprochloride might not wear off at all should the threat actually come true. Finally, Dib could stand it no more. Zim would poison Gaz (and himself) anyway, no matter what happens should he succeed in taking over the Earth! That couldn't happen! So, he went to the bars of his cell and said to the nearest zombie, "Hey, hey ugly! Yeah, you!" The zombie turned and growled at Dib. But Dib's plan helped him get over the growl and Dib said, "Do you ever bathe at all, or do you always smell like this?" Now the zombie couldn't understand a word that Dib was saying, but since his only two thoughts were to 'Eat' and 'Serve Zim and only Zim', he could still tell that Dib was saying an insult about him. So he roared and tore apart the cell bars. He got into the cell, but only to have Dib slip out of the cell and run like hell.
What Dib saw disturbed him so much, he would have puked. Zombies were tearing apart houses and streets, and even stealing candy from little kids! But Dib had no time. He had to find Zim and Gaz, or else it'll be too late. "But how do I..." he started asking himself when all of a sudden a small green thing collided with his stomach, making him crash onto the ground. After recovering from his fall, Dib saw that it was none other than GIR who collided with him. GIR, noticing who it was that he collided with, looked angrily at Dib and asked menacingly, "Have you come to steal my taquitos?" Completely confused, Dib shook his head. GIR, taking this answer as a 'no', whooped for joy and then said to him, "Come on cowboy! It's time for the big one!" Before Dib could respond, GIR got underneath Dib and took off, with Di on his back. At first, Dib had no idea what was going on, but then whirlwinds of air flew past him as GIR flew him to wherever he was taking him. Finally, Dib saw a flying vehicle in the distance which had Zim and Gaz on it. GIR landed Dib just beneath the vehicle and then Dib ordered, "Don't tell Zim that I'm down here. Got it?" GIR saluted but then started speaking in gibberish as he ran off to do Lord-knows-what.
Gaz noticed GIR flying underneath the vehicle with Dib on his back. Dib escaped! She thought, Hallelujah! But there was the bottle of beer to consider. Should Dib be caught, either she or Dib would have to pay huge consequences. She saw it on a table close to where Zim was standing. It was a long shot, and she probably would've been caught, but she'd probably have to drink it anyway, knowing Dib's stupidity. Slowly, she inched her way across the platform to the table with the beer. Zim didn't notice. Then, maing sure she was within distance, she kicked the table. The beer bottle fell off and landed with a crash!
Zim turned around and noticed the beer bottle was broken. Dib had just climbed to the platform where Zim and Gaz were. GIR snuck up behind Gaz and untied her. That was when all hell broke loose. Zim took out his zombie-controlling remote and was about to call in some zombies when Dib ran into him, causing the remote to fly out of Zim's hands. Gaz made a grab for it but GIR grabbed it first and was about to give it to Zim when Dib was able to snatch it out of his hands and started to run for it. Zim ran after Dib, but Gaz "accidentally" tripped him. Examining the remote, Dib realized that all of the writing on the button was in Zim's own language and not his own. GIR collided with Dib, but Dib held on to the remote and accidentally pressed a button at the top left.
The zombies stopped moving and fainted onto the ground. They weren't dead, because they were breathing. Something yellow oozed out of their mouths and Gaz realized that this was the gadolinium cuprochloride. Zim, noticing that he had lost, said to Dib,
"Well, Di, it looks like dumb luck was on your side. But have no fear, this invader isn't going to give up that easily. Earth will be mine, or I'll die trying." With one look at Gaz, Zim pressed a button on a tray that came out of the platform and the vehicle dumped Gaz and Dib onto the ground. After the humans were dropped, the vehicle zoomed away as the sun rose on November 1st.