This episode starts out with Zim in his lab watching some memories from recess. When he was playing dodgeball and he got hit in the head and people started laughing at him, of kids pushing him, tripping him, of Dib throwing food at him, tieing him up on the pole with the teatherball, kicking him, and pouring water on him from a tree.
The next day at school, Ms. Bitters is talking about cannibalism, when Dib raises his hand and tells her that Zim has been in the bathroom a really long time. ms. Bitters starts arguing with him that he spent quite a long time in there one time too, and he tells her it was corn and mayonaise day, and Zim barges in, exclaiming that his buisness is done. Dib asked who spends 3 hours in the bathroom before lunch, and Zim tells him that he had so much to do. Just then GIRs voice comes over the intercom saying that he was the new school announcer, and that a surprise mandatory field trip has been declared for all the children of Ms. Bitters' class except for Zim. GIR tells them that they are going to a special place made entirely of food, and that he likes food, and starts beat-boxing (for those of you that don't know, beat-boxing is a way of making music beats using only your mouth.) Zim cancels the broadcast before long. As Dib leaves, he tells Ms. Bitters to watch him closely.
Dib gets on the bus and he notices that the driver is behind a door. He sits down with some kids from his class, and they get up to move. He tells everyone that he thinks there is something seriously wrong with the surprise field trip, and a girl tells him that he is so weird.
In class, Ms. Bitters tells Zim to memorize the copyright information in the book, and Zim asked if he could use the restroom again, and she says that it is his last pass for the rest of the school year. Zim makes it into the restroom, and GIR is still beat-boxing. Zim tells him that he shut it off and that the plan has worked so far. He tells him they are going home to initate phase two, and GIR says that it was his favorite phase.
On the bus, Dib notices that they've been passing the same stuff over and over again. He tells the people that the dog has gone by four or five times already. Zim goes into the door where the driver is, and is about to ask something, when the robot driver tells him to go back to his seat and keep his arms and legs inside the bus. He is about to tell him that he noticed that they've been passing the same stuff, but the drivers head lifted up, split open to show a tv screen, and Zim came on, telling Dib that this is all a trap, and that he is going to let him in on what is happening. He tells Dib to look out the window, and the bus turned into a rocket ship, and it flew out of earth. Zim is in there screaming, and the entire time, everyone on the bus is listening to him, wondering what is going on. Dib told Zim that he wouldn't get away with it, but Zim tells him to look out the window, that he already got away with it. Dib asked if his plan was just launching them into space, and Zim tells him that it was just the first part of his plan. A wormhole suddenly appeared, and Zim tells him that it was only phase two of the plan. He tells him that he researched many different wormholes with many different outcomes. He tells him one would have put him in one with pure itching, another with pure dooky (it doesn't show the dooky, but it show's Dib and the background, and it turned brown,) but the one he chose has a room with a moose. Dib starts to scream, and then stops because of how rediculous that is. Zim demonstrates by releasing walnuts into the wormhole, and the moose started to eat them. Dib got scared, and Zim said that he will leave him with his moosey fate.
Dib comes running in the bus part and tells everyone that Zim launched them into a wormhole, and that it leads to something horrible, but a kid gets up from his seat and gives Dib a major wedgie. Dib tries to plot out the course of the wormhole, and he notices there's a fork in the wormhole. The left leads to the room with a moose, and the right leads to earth. Zim tells everyone that if they move to the right side of the bus, they might be able to make it out of the wormhole, but the only problem is that everyone is on the left side of the bus, away from Dib. The kids stay on the left side, so Dib moves over to the right side so everyone would move to the right. This changes the course and sends tandhem back to skool. Everyone calls the field trip stupid, like Dib. Zim was watching the whole thing, and he got mad and started pounding on things.