When a large, dangerous imaginary friend begins to destroy the city, Imaginary Man comes to stop him. When Mac becomes his sidekick, Bloo becomes jealous and joins forces with Imaginary Man's enemy and sister, Nemesister.
Trivia
- This episode borrows numerous trademark elements from "The Powerpuff Girls," another popular show by Craig McCracken.
- Mac references G.I. Joe, Fat Albert, Teenage Mutant Ninja Turtles (specifically Michalengelo) and Scooby-Doo.
- The show Jackie Khones was watching was a scene from One false movie.
- Bloo references Darth Vader.
- Bloo's repetitive, extravagant speech is likely a reference to the way Mojo Jojo talks.
- The Anchor Man resembles look to Tom Kenny, who in the beginning of episodes, acts like the PPG narrator
- Mac as "Mac-attack" says quotes like "Jinkies" and "Zoinks" who's are quotes from Velma and Shaggy from Scooby Doo franchise
Memorable Qoutes
- Mac: "Hey, hey, hey."
- Mac: "And knowing is half the battle."
- Mac: "Jinkies!"
- Mac: "Zoinks!"
- Mac: "Holy habadashery!"
- Bloo: "(Singing tune) DadadadadadadadadadundundundadundundundundundadundaDADADA!!!!!!!
- Bloo to Mac: "Mac, I am your father!'