Sandy's Rocket

SpongeBob visits Sandy's treedome, and then sees that Sandy has built a rocket ship. Sandy explains to him that she is going to the moon, and SpongeBob begs her to take him with her. Although she immediately insists that he cannot come and that this trip is for science and not for fun, and also tells him that there is not enough room for him, SpongeBob's begging ultimately convinces her to let him come with her.

That night, Patrick comes to SpongeBob's house and gives him some "Alien Repellent," which they sneak into Sandy's treedome to spray on the windows. Even though they agree to only spray the windows, Patrick inadvertently enters the rocket, and SpongeBob follows. After playing with the ship's various features, SpongeBob accidentally starts up the rocket, which makes it loop over the moon a few times and then comes back to Bikini Bottom. SpongeBob and Patrick convinced that they're now on the Moon, think that the aliens are projecting their memories onto the environment to trick them.

They begin catching everyone with Sandy's net guns (intended for harvesting moon rocks), believing the citizens of Bikini Bottom are aliens. Eventually, they capture everyone in Bikini Bottom. When Sandy arrives and tries to chew them out for ruining her experiment, SpongeBob and Patrick shoot their net guns at her, capturing her too. Sandy attempts to explain the truth to them, but they slam the door in her face. Suddenly, SpongeBob is convinced that Patrick is an alien. Patrick attempts to shoot him before he has a chance to capture him but ends up shooting and capturing himself (he had his net gun pointed the wrong way). SpongeBob starts the rocket again to return home, and when it reaches the moon, the rocket crashes on top of it, having run out of gas. Noticing that things are different, SpongeBob looks out the window to see the Earth where he realizes his mistake. All the Bikini Bottomites, who are being stored in the cargo hold of the ship, end the episode saying: "SpongeBob, we aliens would like a word with you."