Danny, Tucker and Sam admire a brand new truck. Danny and Tucker are amazed by it, but Sam is against it, considering it a danger to the environment.
Sam mentions that Danny should use his ghost powers to scare people away from environmentally-unfriendly vehicles like this one, but both Danny and Tucker are against it because Sam's ideas had gotten them into trouble before. For an example, they bring up that it was her idea for Danny to go into the faulty Fenton Portal, which gave him his powers, in the first place.
Sam is annoyed and wishes someone would get rid of the trucks. Unbeknownst to the group, Desiree is there and has heard her wish. Desiree enchants a giant cow statue which comes to life and destroys some of the trucks, also getting Danny and Tucker soaked with milk.
Danny fights off the giant cow (and removes the milk from them with his intangibility). Then Sam sees a poster with three female horror movie icons, Terminatra, Femalien, and Nightmerica, all starring together in one film. Since the boys promised to spend the Friday with her, she reveals that she has already got tickets for the movie.
Just then, Paulina shows up and invites the trio to her quinceañera. Paulina tells them that her reason for inviting them was not actually because she likes them; rather, it is because she wants to meet Danny Phantom, who she has noticed has always shown up around Danny Fenton. Excited to be invited either way, Danny and Tucker beg Sam to go, and she gives in.
Sam glumly talks to herself, saying that she wishes that something could happen to Paulina to cause a cancellation of her party. Desiree, nearby overhearing, grants her "wish" again, and enchants the movie poster, bringing the movie characters to life.
Mr. Lancer explains that a meteor shower will happen on Paulina's 15th birthday party while Sam sketches in her notebook, designing various logos for Danny Phantom's costume. Femalien suddenly appears and attacks, and everybody runs screaming while Danny hides and goes ghost.
Danny battles Femalien. During the battle, Paulina tries to invite Danny Phantom to her party, but he is too focused on the battle to notice. He eventually beats Femalien, and before she disappears, she says Sam's name. Danny fears that Sam could be involved in the monster's appearance, so he puts the Specter Deflector around her. Sam is noticeably annoyed at Danny's accusation.
Paulina suddenly screams and runs away. He warns Sam to stay at school while Danny confronts this new threat, but after he leaves, she comes after him anyway, still angry with him for breaking his promise of going to the movies with her on Friday.
Paulina drives her moped to flee from Terminatra as Danny steps in to stop her. The battle leads to a fountain where Danny takes too much of a beating and turns back to normal. Sam, still wearing the belt, attacks Terminatra and destroys her, and she too says Sam's name before she disappears.
Danny warns Sam to stay away, but Sam has had enough of Danny running away from her and the two get into a fight. Sam turns away, shouting, "Danny, I swear, there are days I wish I had never even met you!" Desiree suddenly appears in front of Danny who discovers the more wishes she grants, the more powerful she becomes. By the time Danny realizes what Sam has inadvertently done, it is too late to stop Desiree, and she grants Sam's latest wish.
The next day, Danny and Tucker stand in the school hallway, discussing their weekend plans - which, as it turns out, is nothing until college. Sam approaches Danny and Tucker, but they have no idea who she is.
Elsewhere, Dash and Kwan stuff some of the nerdy students into a locker. One of them, Mikey, wishes someone would show them what this feels like. Desiree comes and grants the wish by turning Mikey into a wolf-like monster, who stuffs Dash and Kwan into a locker and then turns back to normal afterwards. Desiree gleefully observes that Danny no longer has his powers and is thus helpless to stop her.
Sam notices Desiree, and then finds a photo that used to be of Sam, Danny and Tucker inside Danny's locker, but is now just the boys, with Sam missing from it. Sam realizes what her wish has caused - because Sam never met Danny, he never had the portal accident that gave him his powers. Sam tries to convince Danny of this, but Danny doesn't believe her because, from his perspective, none of it ever happened.
To get Danny's attention, Sam tries to make herself pretty, which apparently works. She shows Danny her photo album of them all together. None of this gets to Danny until he sees pictures of them in his parents' basement. Sam then deduces that because she was wearing the Specter Deflector, she was unaffected by Desiree's wish grant.
Nightmerica suddenly attacks and Sam, realizing that Danny is powerless, battles her by herself. She makes a ski mask out of Tucker's hat and hits Nightmerica with the Jack O' Nine Tails, then traps her in the Fenton Thermos. Danny is now giving her his full attention.
At Danny's house, Sam shuts down the Fenton Ghost Portal and quickly arranges the settings as seen in a photograph that she took. She throws Danny his jumpsuit and just as he finishes putting it on, she removes his father's face logo from the jumpsuit's chest and applies a new emblem in its place.
Danny cautiously goes into the portal, leans against the "On" button and the portal activates, transforming him into Danny Phantom. Jack hears something from downstairs and is shocked to see Danny, who has turned back to normal, pretending to kiss Sam in a "Fake-Out Make-Out." Danny demands to know who this girl is. Sam answers that her name is Paulina, and Jack forbids his son from seeing "Paulina" again.
That night, Sam tells Danny how to work out his ghost powers and Desiree's plans to use everyone's wishes from the meteor shower to gain more strength.
At the night of the party, Desiree appears and Danny tries to fight her, but he has no experience with his ghost powers. Meanwhile, Sam is attacked by living bushes and Tucker is chased by a monster truck from the beginning.
Sam, realizing Desiree grants every single wish, wishes Danny and her had never fought and get everything back to the way it was (while letting him keep his new logo).
Desiree reluctantly grants the wish and Danny, now with all his ghost-hunting memories, sucks Desiree into the Thermos.
Danny then decides to keep the promise he made to Sam and takes her and Tucker to the movies. While there, Sam and Danny each apologize for the way they acted before and all is forgiven.
- Danny Phantom: Season 2, Part 1
- Danny Phantom: The Complete Series
- Danny makes several mentions to past episodes when arguing with Sam, including that of making the lunch menu purely vegetarian meals in "Mystery Meat," the gorilla incident in "One of a Kind," the garage sale in "Attack of the Killer Garage Sale," and the infamous "fake-out make-out" in "Shades of Gray."
- Danny also mentions the cellar full of meat under the school from "Mystery Meat" when he phases through the floor in Mr. Lancer's classroom.
- Allusions: See List of allusions
- Goofs: See List of goofs
- Danny blames Sam for the garage sale incident in "Attack of the Killer Garage Sale" despite it actually being his idea. The original concept was supposed to have Sam telling Danny to sell his dad's junk, but it was changed later on.
- This episode marks the point where Danny gets the white "D" logo on his suit. All subsequent episodes and the theme song animation include the logo in his design starting from the next episode, "Doctor's Disorders". Previous episodes were not retroactively edited to include the logo.
- Desiree breaks the fourth wall by saying to the audience "You know the rest" when making Mikey's wish.
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