Wreck-It Cartoon Network is a comedy film-spoof of the 2012 computer-animated comedy film Wreck-It Ralph, Walt Disney Animation Studios' 52nd feature film project.
Gumball Watterson, the leader of the Billy Pack, is ostracized by various television characters for just doing his job. Tired of being popular, Dexter announces at SpongeBob SquarePants' twentieth anniversary party that he will earn his respect by receiving a metal cheese.
The Billy Pack learns they can obtain a metal cheese from Nickelodeon. After disrupting a television session, the Billy Pack scales the television channel's central beacon and obtains a metal cheese, to which Dexter collect it for his collection, only to hatch a jellyfish. The Billy Pack and the jellyfish stumble into an escape pod, which is launched out of the television channel, and return to Cartoon Network while crash land in The Amazing World of Gumball, the most unusual animated television show.
With the Billy Pack missing, the channel is labelled as malfunctioning and faces being defunct. SpongeBob and Patrick Star, upon learning from Oggy that Dexter purchase a metal cheese, ventures to Nickelodeon and team up with Squidward Tentacles to retrieve the Billy Pack and the jellyfish. SpongeBob explains to Squidward that the Billy Pack solve a mystery of Professor Pooypants, who people around him and having laughter on him and he is forced to have a relationship.
Darwin, Anais, Nicole and Richard Watterson steals Dexter's metal cheese to buy their way into the nightly race to determine. Horrid Henry, the ruler of The Wormy 500, forbids them from racing because Richard has getzes. The Billy Pack and the Wattersons agree to work together to retrieve Dexter's metal cheese and help them win a race. They put Richard some surgery and hide out at the Wattersons' house, where Gumball and the Billy Pack shows them what Richard Watterson is. Horrid Henry hacks his code to obtain Dexter's metal cheese, and offers it to the Billy Pack in exchange for preventing the Wattersons from racing. He claims that Richard's getzes will be brought to the attention of audiences and The Amazing World of Gumball will be ended; the getzed Richard cannot leave, and he will be replaced by a new adult cat-like father version while Horrid Henry and other residents celebrate. The Billy Pack reluctantly agrees and destroys Richard, forcing Dexter to gain his life as he will put a metal cheese right to his collection. While Gumball is watching the moonlight, Anais apologizes to Gumball for she, Darwin and Nicole getting mad earlier and they hug together.
Meanwhile, SpongeBob, Patrick and Squidward search Elmore for the Billy Pack. SpongeBob and Patrick overwhelms with Squidward, but he abandons them when they inadvertently reminds him of SpongeBob being fine dining and breathing. Gumball and Dexter reconciles with SpongeBob, Patrick and the Wattersons, and SpongeBob and Patrick put Richard surgery. Squidward discovers a swarm of jellyfish eggs underground, which hatch and start devouring the city.
The Wattersons participates in the race, but are attacked by Horrid Henry and Professor Poopypants, who took over The Amazing World of Gumball. Gumball, Dexter, SpongeBob, Patrick and Squidward evacuate the show, but Richard is trapped due to his getzes. When Squidward points out that the jellyfishes can be destroyed by a beacon of light as in Nickelodeon, Gumball decides to make his house erupt to replicate it. During his attempts, Gumball is attacked by Horrid Henry and Professor Poopypants, now fused with the jellyfish that devoured them. Gumball makes the place erupt and falls into its depths, but the Wattersons save him. The volcanic house destroys the jellyfishes, Horrid Henry and Professor Poopypants.
The Wattersons crosses the finish line, rebooting The Amazing World of Gumball and restoring their statuses and memories. Dexter, SpongeBob, Patrick and Squidward return home and the channel is spared. Gumball gains respect from the various characters as he and Anais enjoy watching the sunset.
- Gumball (with Dexter, Dee-Dee, Blossom, Bubbles, Buttercup and Billy as Extras) - Wreck-It Ralph
- Darwin (with Anais and Nicole as Extras) - Vanellope von Schweetz
- SpongeBob SquarePants (with Patrick Star as Extras) - Fix-It Felix, Jr.
- Squidward Tentacles - Sergeant Tamora Jean Calhoun
- Horrid Henry - King Candy/Turbo
- Penny Fitzgerald - Taffyta Muttonfudge
- Angelica - Markowski
- Michael Jordan - Mr. Litwak
- Phineas Flynn - General Hologram
- Jasmine Jordan - Moppet Girl
- Rude Ralph - Sour Bill
- Goofy - Wynnchel
- Max - Duncan
- Brandy - Gene
- Mr. Whiskers - Mary
- Margo - Deanna
- Oggy - Q*Bert
- Moe, Larry, Curly - Beard Papa
- The film-spoof's title was based on the 2012 computer-animated comedy film Wreck-It Ralph, and Cartoon Network, the all-time worldwide channel.