This episode starts out with a bird flying in the sky with a worm, flying past a tree near Skool, where birds are dancing in the tree. Below the tree, squirells are dancing on a window ledge outside of Ms. Bitters' class, where Dib is watching stupidly. Ms. Bitters is on a phone, where she is quite upset. She hangs up and tells the kids that despite her moral outrage, the principal is allowing them to celebrate valentines day, and the whole class, except for Zim and Dib, are happy about this, throwing things around. Ms. Bitters tells them to go ahead and pass out the valentines day meat slabs. Zim says that he left his meat at home, and a girl walks up to him and hands a tray of meat out to him, but he slaps it away, making the meat fly on her face. A dorky looking girl is giving Dib all her meat, and Dib told Ms. Bitters that he read long ago people used to pass out cards candy, and asked how meat slabs came about. Ms. Bitters tells him that he doesn't wanna know. She tells him that she had a valentine once, and then a red light and alarm flashes. Ms. Bitters picks up the phone, and hangs up again quite annoyed. She tells them to celebrate over crowding in school, there's a new girl in the class. Outside of the school, and ship lands and a girl exits out of it, bringing her cat along with her. A flash of light and suddenly, a girl appears at the door. She tells them that her name is Tak and she's new here, and the whole class, except for Zim, tells her hello. She tells them that her dad is head of the Delicous Weenie Corp., and that was a jet, so she brought valentines meat for everyone, and showered the room with hot dogs. She jumped up on the desk and said except for that kid, and pointed at Zim. Zim tells her that he needs no meats, but she told him that she prepared a poem. A girl told the class the Zim has a girlfriend, and Tak told her that it wasn't nice to embarass people, and she told her to apologize and eat her eraser, with a spark in her eyes. The girl looked hypnotized and told Zim that she was sorry and took a bite out of her giant eraser. "For longer than I can remember, I've been looking for someone like you. Someone with a head like yours and a torso too. Birds sing and your going to pay, the end," read Taks poem. She gave him meat covered in barbaque sauce, and threw it at him, making him burn and sizzle. Dib was trying to get people to look at Zim, but they were all intreged with Tak. Ms. Bitters told her that was horrible, and she told her that she'd need a place to sit. She pointed at Rob, right behind Dib, and told him that he was being transferred to the underground classroom, and hole opened under his floor and he fell through, and Tak quickly got in his seat. She pointed at a kid in front of her and told him that she was just tired of him. Poonchy came in and took his spot, while Zim was still running around sizzling. Dib raised his hand and asked if there was really underground classes, and Ms. Bitters just told him whatever. Zim was in the back, rolling around on a table, and hit a book case and got buried in books.
In his lab, Zim was reporting to the tallests, who were using puppets as themselves, and he told them that he means no disrespect by his appearance. GIR said something and he yelled at him to be quiet. Zim told them that a new girl attacked him with meat, and told them his conclusion was she was in love with him. The tallests started laughing behind the backdrop where they where using their puppets. Dib told them that it may prove valuable so he can learn about human affection. In the background, Purple's puppet's head falls off while Zim was turned around, and he was telling them that he has determined love was pain based. Purple used his head for the puppets body, and told Zim that was great, and Red made Purple's arms flail around, and he told Zim not to worry, it was just his arms flailing and giggleing. Red used Purple's puppet's arm to smack him in the face. Zim ignored that, and told them that one he was done with the child, he would destroy her. Purple told him that they had another called and signed off. Red and Purple started cracking up, and their thing started ringing again. Red said they really do have another call. They turned it on and it was an Irken girl with purple eyes.
At Skool, Dib was on a fence talking to Tak, while the girl that gave him valentines meats was crying. He told her that he never met a person that was interested in his paranormal studies, and was about to talk about Zim, when he came up and pushed him off the fence. Zim told Tak that he has come to acknowlage her feelings for her and he came to congradulate her on recognizing his superiority, choosing him as his love pig, and to be honored. Tak didn't say anything, just pulled out some Poop Barbeque sauce and sprayed it on Zim. Tak said that maybe he really was an alien like Dib says, a horribly disquise, disgusting, horrible one. Zim told her that was nonsence, and despite his large head, Dib was quite stupid. In the grass and thorns behind the fence, Dib told him that his head wasn't big. Zim told her to prepare her brain, her magical love adventure begins now, and picked her up off of the fence and set her down. Tak started laughing at him and he started laughing back, and then Tak put a trash can over Zim's head and kicked him.
At lunch, Zim tried to give her a muffin, but she splashed him with Orange Juice. Zim left a meat slab in her locker that said to Tak from Zim, but she tied the meat to his head and threw him out of school. In class, Zim use a machine thingy to send her a present, but she put the present on his head and tied him up with the machine thingy. Walking home, Zim tried to surprise her around the ledge with some flowers, but there was an extremely large dog that started chasing him and Tak was sitting on the ledge, and when she walked past him, he was in a mailbox. At Skool, Zim had to carry a ton of her books, but he tripped and all the books piled on top of him. At lunch Tak poured her lunch on him.
Zim opened the door, where GIR was waiting upside down. He told Zim that he was on fire, and Zim just said oh well. Zim told GIR that he feels he knows enough about human affection, and he hates it, especially the part with the beans. Zim told GIR that his friend Tak was no longer useful to him, when the doorbell rang. Zim used some kind of machine to see through the door, and Tak was standing there. GIR put on his costume, and Zim opened the door, when a cat came in to look at GIR and then go back to where Tak was standing. Zim told her that he was gald she stopped by, it gave him a chance to end their hideous relationship and enjoy her shrill cry of having been rejected by him. Tak told him that he's got to be kidding, and Zim told her that he is very serious, and told her to cry. Tak started laughing, and while she was laughing, her and the cat's disquise came off, revealing her as the Irken girl that reported after the tallests stopped talking to Zim, and revealing the cat as a SIR unit. Zim is slightly amazed by this, and tells her that she's Irken. Tak told him that he was a bigger fool than she imagined. She told him that it was 50 years ago on the Irken military training planet Devastis. She told him that she has waited years to take her test to be one of the Irken Elite Soldiers, and should they arise, be an invader. It shows Zim trying to get a snack from the vending machine, but it got stuck. He started pounding on it, but it wouldn't budge, so he used his pack to fire at it, but it didn't do anything. He finally used a mech robot to destroy it. She told him that he blew the power block for the entire half of that plent, but the testing went on uninteruppted on the other side. She told him that she pleaded with the control brain to let her take the test, but she said she had to wait another 70 years, and she was placed on a janitorial squad, and was sent to Planet Dirt. She escaped, and she went on a long search for the mysterious person who caused the blackout and ruined her life. She told him that she eventually tracked him to this horrible place, and took the rich weenie human as her false father. Zim interuppter her, saying that she blamed him for his horrible life, blah blah big deal. Tak told her that she was going to take his mission, not get revenge. Zim asked if she was after revenge, and she told him no!, it was about taking what is rightfully hers. She told him that she should have been an invader, she should have been part of the great assigning, and she shouldn't have to be stealing this planet from him. Zim told her she was after his robot bee, and Tak yelled no at him, and told him told him to listen carefully. She told him that she was a better invader than he could ever be, and she belnds in perfectly. She told him that the plan she has for the nasty rock would so impress the tallest that they would have no choice but to make her an invader. Zim was shocked, and asked what the plan was, but Tak laughed, and Zim told her that he knew he was a master of comedy, tell him the plan. Tak told him that part one involved crippling his base so he could watch as she ruins his life. Her SIR brought stuff out of it's head and went to the roof, making his base start getting electrocuted. Tak was about to tell him her other plan, but Zim kept interupting her, saying crying over his base. Tak got tired of being interuppted, and told him that she was leaving now. Zim told her that she didn't tell him part two, but Tak blew a hole in the house and disappeared. Then the robot bee flew away.
On the steet, Zim and GIR were being beat up by a ham demon. Zim said that was a horrible adventure with the ham demon, but he was making no progress on finding out what Tak's plan is. Zim said that the base was still repairing itself, and the only other person with the facilities, he won't even consider.
At Dib's house, Dib walks into the kitchen to see Professor Membrane talking to Zim. Dib is a little surprised by this, and Professor Membrane tells him that his little foreign friend is there to see him. Dib tells him that's the alien, and Professor Membrane, thinking he's talking about aliens from another country, says of course he is. Dib asked Zim what was going on, and Zim tells him that it seems the enemies have a common enemy, Tak. He tells him that she's Irken and she's after his job and his planet. Dib tells Zim that he likes Tak and she hates Zim, and he's just jealous, but Zim interrupts him and tells him that it has nothing to do with jelly, he's been trying to figure out her plan, but it's been difficult. He tells him that 48 hours of chasing Tak and all's he can come up with are photos from the ham demon. He tells them they are of a giant evil weenie stand her father is conducting. Dib tells him that a giant weenie stand is weird, but it doesn't say anything about Tak. Gaz walks in to hear Dib and Zim arguing over Tak, and Gaz tell them that their voices make her sick, and sprays poop cola at Zim, making him run around being burned, and he jumps out the window. Dib tells Gaz thanks, but she sprays him with poop cola too.
At the Delicous Weenie, Gaz walks by and the guy asks what it will be. Gaz tells him to be quiet, she just wanted to let him know that her brother was trying to break into the building through some secret enterance. The guy just looks at her and tells her that they have Chili beans. Dib is crawling up the wall, and back at the stand, Gaz tells the guy that she though it would be funny to see Dib get beaten up by security. The man tells her that he don't think there is a secret enterance, that he works there and that's all he's seen. Gaz tells him that the place was kind of big just for a hot dog stand, and the guy stuck his head out and looked around amazed. Dib is still climbing the wall. The guy tells her that now he thinks of it, there is a secret enterance around back where they deliver all that alien looking machinery. Dib finally makes it into the secret enterance where there is a whole bunch of alien looking machinery. Dib asked what the place was, and Gaz said that it was a hot dog stand. Dib asked Gaz how she got there, but she started walking off. Dib followed her, recording stuff on his camera. Take came down and said no pictures please. Dib said that he can explain, but Tak said there was no need because in a second he won't remember having seen any of it. She uses her spark in her eye trick thingy, but it didn't do anything to him. She said that he must be smarter than the rest of them, and then said she'll see about her sister, but Gaz sprayed her with Poop Cola, and she started burning. Dib asked if she was behind it, slightly shocked, but she told him no, that he was, and pointed to the bottom of the place where there was a glass capsule thingy. Inside it was the Delicous Weenie man. She told him that his resources were, and she only lets him out when she wants to keep appearance, like Zim's robot parnets, only good. Dib told her that she can't do that, people will know somethings up will a place that enormous. Tak told him that most people don't notice, all they see is a corporate venture, not world conquest. Dib asked if there was a difference, and Zim blasted a hole through the wall. Zim tells Tak that it's over and the earth is his to devastate, and he already promised the moon to GIR. Dib asked how he knew they would be there, and Zim told him that he placed a tracking device on him. Dib asked where the tracking device was, and GIR was on the back of his head. Tak told him that it won't stop her from keeping her promise to the tallests, and yelled for Mimi, her SIR, to attack. Mimi grabbed Dib by the head and threw him down a tube thingy. Mimi chased Zim out of his hole, making him jump onto his voot cruiser, and then he grabbed GIR, throwing him into the cruiser too, making it fall. Tak's cruiser came crashing through too, and she ran into her cruiser and flew off. Mimi headed for Gaz, but she sprayed Poop Cola at her, making something fall out of her head, and then she turned back into a cat and ran.
Outside, Dib fell into a garbage dumpster and Zim, GIR, and the Voot Cruiser came falling along, but hit the pavement. Dib told Zim that he ruined everything, he was about to find out the plan, and Zim was about to tell him it was his fault, but Gaz was down there and asked Zim what that thing was. Zim told her that it was a SIR unit's memory disc, and it probably has Tak's plan all over it. Dib got in between Gaz and Zim and told him that it was theirs, and to back off. Zim told Dib that he was the only one with the technology to decode the files, and Dib told him that they're the only ones with the files to be decoded. GIR said that he's... and then laughed and said that he didn't know. Dib told Zim that they go to his base with their disc, and Zim told Dib that as soon as they defeat Tak, he's going to feed his brains to GIR, and Dib told him that it was a deal.
Dib, Zim, GIR, and Gaz make it down to Zim's lab, and Gaz laughs at it. Zim told them not to touch anything or he'll melt his face off or something. Zim puts the disc in his computer, and Tak comes on the screen. She is sending a message to the tallests, saying that she has created a magma pump to hollow out Earth's molten core, and once emptey, she'll fill it with snacks as an offering to her tallests. Tak said that they never considered Earth valuable before, but she shall make it valuable. Zim says that she stole the plan from him, but GIR says that she didn't. Suddenly, the ground starts to shake. Zim tells the computer to ready The Voot, he must stop Tak, and Dib tells him that he has to drop him off at the weenie stand so he can shut the pump off. Gaz asked the computer if there were any video games around, and the computer told her no.
Delicous Weenie turned into the Irken pump, and started pumping the magma out, sending it into space. Zim flew by in the cruiser and dropped Dib off, and saw Tak standing on top of the pump. She saw Zim and got into her cruiser, where they were fighting in space. Dib got inside the pump, but couldn't figure out how to turn it off. At Zim's lab, Gaz had GIR hooked up to some kind of machine, and she told GIR to do things, make Tak's robot go crazy. GIR told her only if she dances with him, and she told him no. She finally gave in and started dancing. In space, Zim and Tak were still fighting. Tak told him to give up, she built her ship herself, and they collided with each other. In Tak's ship, Mimi started acting like GIR, and he made Mimi hit something in Tak's ship, and he started dancing on her controls. Zim took advantage of this and started knocking her into the magma, when she finally ejected her cockpit from the full ship. In the pump thing, Dib was running around trying to find it, when suddenly he sees a big button, with a big sign that said on/off. Dib pressed the button, and the magama started going back down. Zim saw this from space and was quite pleased. Take jumped on his ship with her cockpit, and told Zim that she didn't know how he did it, he wasn't even an invader, and the Tallests lied to him, and his mission is all a big lie. Zim ignored this, drinking his Irken Poop, and pressed a button, sending her flying off into space somwhere.
Zim reported back to the tallests and told them that Tak's plan was ruined, and the humans helped out, but they were hypnotized by him. Zim told them that they should've heard the lies she said about them, and all that matters was that Tak's evil snack plan was stopped. Purple said that he liked snacks, and Red told Zim that Purple liked snacks, and told them that he knows they do, and signed off.
Dib is sitting on his roof, listening for alien transmissions. He asked Gaz if she wanted to fly up in space and just see it all, and she ignored him and walked into the house, playing her game. Suddenly, something from the sky came and landed in Dib's back yard. He looked down and saw that it was Tak's cruiser.