After Zack and Cody get superpowers, they must save the world's children from being turned into mini-adults by The Meanager, Mr. Moseby's alter-ego.
Tropes:
- All Just a Dream: The whole episode turns out to be one from Zack.
- Be Careful What You Wish For: Zack and Cody end up regretting their wish for superpowers.
- Blatant Lies: Arwin hides the Adultifier under a tarp with a sign reading "Nothing evil under here".
- Bus Full of Innocents: Implied at the end after the Meanager is defeated, among the emergencies the twins are notified of is a bus on a broken suspension bridge.
- Damsel in Distress:
- Maddie is tied up and held hostage at her summer camp by Esteban/Bell Boy, while Carey is held hostage in the basement by Arwin/The Engineer.
- London in the climax when she is held hostage by the Meanager, being forced to give up her diamonds in order to power the Adultifier.
- Eye Beams: Mr. Moseby has these as the Meanager, each with different effects according to the colors. Red is heat vision, yellow is mind control, blue is a freeze ray, purple tickles people, and green turns kids into adults.
- Giant Spider: Implied at the end after Zack and Cody defeat the Meanager:Carey: Aw, guys, I'm sorry, but the phone's been ringing all night. Apparently a lot of people need your help. (whips out the list) Let's see, there's a bus on a broken suspension bridge, and... Ooh, I think I'd start with the giant spider that's climbing city hall.
(a crowd is heard screaming outside, and the twins and Carey peek out the window)
Carey: Oh, he just ate the mayor!
(monster burping) - Instant Costume Change: Any kid that gets hit by Moseby's green Eye Beams will have their clothes instantly change into adult wardrobe (Bob's clothes become a man's tuxedo).
- Let Me Get This Straight...: When Esteban, playing the role of the Meanager/Mr. Moseby's minion, BellBoy, holds Maddie captive at her workplace:Maddie: So, let me get this straight: Moseby is a supervillain, and you're his evil minion sent here to kidnap me? That is the silliest thing I've ever heard!
Esteban/BellBoy: Silence, captive!
Maddie: On second thought, that is the silliest thing I've ever heard! - Mind over Matter: Cody's abilities as Brain Man; he can move things with his mind, in addition to reading people's thoughts.
- Overnight Age-Up: Moseby's green lasers turn children into mini-adults; his Evil Plan is to amplify them with the Adultifier to turn every child in the world into one.
- Superhero Episode: Zack and Cody become superheroes after a Wish Upon a Shooting Star, while Mr. Moseby becomes the Big Bad.
- Super-Speed: Zack's ability as Quick Guy is to run at fast speeds.
