TV series
Taking numbers instead of names, five extraordinary 10-year-olds form a covert team called the Kids Next Door with one dedicated mission: to free all children from the tyrannical rule of adults.
Streaming, rental and purchase options
Checked Jul 22, 2026
Codename: Kids Next Door is available to stream on Tubi in United States. You can also buy it from Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
Taking numbers instead of names, five extraordinary 10-year-olds form a covert team called the Kids Next Door with one dedicated mission: to free all children from the tyrannical rule of adults.
Choose an episode, then use the watch options above for the show.
Episode 1
When a kid-friendly senator receives a funding of approximately eleventy-billion dollars, he uses it to build an army of Safety-Bots, to make the world a safe place for children. However, the robots grow more and more extreme in their actions, eventually planning to eliminate adults, and cover the Earth in bubble wrap.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom Warburton
Episode 2
When Numbuh 1 is taken to England, someone gives him a book, resulting in Numbuh 1 getting followed by 3 kids.
Written by Andy Rheingold, Tom Warburton
Episode 3
Sector V attempts to sabotage the Villain's Choice Awards.
Written by Erin Finnegan, Andy Rheingold, Tom Warburton
Episode 4
When salad oil is discovered in the school playground, Numbuh 1 must find a way to save recess, while still keeping a promise to Lizzie.
Written by Andy Rheingold, Tom Warburton
Episode 5
While the team is off on their recess-rescuing mission, the hamsters are attacked and captured by the Sinister Felines from Atop the Litterbox, but end up battling the Hamsters Next Door.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom WarburtonGuest stars Carlos Alazraqui
Episode 6
Numbuh 1 wakes up to discover that he is the president of the United States in an alternate dimension, who is about to sign the Bill of No Rights for Kids.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom Warburton
Episode 7
Amerigo Vespinaccio tries to spread spinach throughout the school, and Sector V must stop him.
Directed by Tom WarburtonWritten by Andy Rheingold, Blake Lemons, Tom WarburtonGuest stars Dave Wittenberg
Episode 8
Numbuh 2 attempts to deliver the fourth grade president's message.
Written by Andy Rheingold, Tom Warburton
Episode 9
Numbuh 20 000 and his Squid Squad work with Sector V to destroy the bridge leading into Le Sissie a store in the mall that sells horrible back-to-school clothes for kids.
Written by Andy Rheingold, Tom Warburton
Episode 10
Numbuhs 2, 3, and 6 are tricked and must get a truckload of soda to a girl's birthday party and keep Mr. Fizz and Lieutenant Seltzer from getting the soda.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom Warburton, Alison WilgusGuest stars Jeff Bennett, Greg Cipes, Charlie Schlatter
Episode 11
Tommy loves Numbuh 2's cruddy, old tricycle but gets laughed at when the other kids see him riding it. Using his 2x4 technology expertise, Tommy rebuilds it into the "Best Bike in the Whole World", but the bike turns evil trying to impress Numbuh 2.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom Warburton
Episode 12
When Gallagher Elementary students are being arrested by the School Safety Patrol for crimes they are envisioned to commit, including detective Numbuh 2, leaving Numbuh 3 to investigate a psychic member of the School Safety Patrol while trying to finish her social studies homework.
Written by Andy Rheingold, Tom Warburton, Alison Wilgus
Episode 13
With Father away at Saratoga Springs for the day on orders from his doctor, the DCFDTL invite Cree and the teenagers to their mansion to plan a new strategy against the Kids Next Door, but instead, the teenagers turn it into a wild house party, leaving the DCFDTL to call Sector V for help.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom WarburtonGuest stars Richard Steven Horvitz, Daran Norris, Khary Payton
Episode 14
Numbuh 5 goes into the Haunted Doghouse to get Sector V's cinder block back, but later comes out with different results.
Directed by Tom WarburtonWritten by Andy Rheingold, Tom Warburton
Episode 15
Numbuhs 3 and 4 are launched into space to break the "Ridiculous" space barrier, but blackout in mid-flight and wake up on a world ruled by anthropomorphic, talking Rainbow Monkeys.
Written by Andy Rheingold, Tom Warburton, Alison Wilgus
Episode 16
This episode illustrates a day at the annual kids' 2x4 tech science fair. Numbuh 2 is present, shoving his "I Can't Believe It's Not Booger" product down the judges' throats.
Written by Andy Rheingold, Tom WarburtonGuest stars Carlos Alazraqui, Tom Kenny, Dave Wittenberg, Jason Marsden, Jennifer Hale, Tara Strong
Episode 17
Continues from Operation: S.C.I.E.N.C.E.. When a mysterious enemy starts kidnapping KND scientists, Sector V sends Numbuh 2 into hiding at an Amish sector to his extreme dismay.
Written by Andy Rheingold, Tom WarburtonGuest stars Tom Kenny, Jeff Bennett, Hynden Walch
Episode 18
Lizzie has always had to compete with the Kids Next Door for Nigel's attention, and she thinks Nigel has found a new girlfriend.
Written by Guy Moore, Andy Rheingold, Tom Warburton, Quack Leard
Episode 19
Heinrich uses a ritual involving sacred golden caramels to take away the qualities the Sector V operatives value the most (Numbuh 1's leadership, Numbuh 2's intellect, Numbuh 3's giddiness, Numbuh 4's toughness, and Numbuh 5's coolness). Numbuh 5 eventually teaches Heinrich that he needs to share his candy to revert to his original form; finally learning to do, it is revealed that Heinrich is actually a girl named Henrietta, whose most precious quality, her femininity, was taken away in the ritual many years ago.
Written by Andy Rheingold, Tom Warburton, Alison WilgusGuest stars Candi Milo
Episode 20
Adults send Numbuh 4's family to the Moon to colonize it. However, Sector V diverts the colony to Hollywood, where they stage a fake colonization, tricking the Beetles family and the adults at mission control to prevent them from discovering the KND Moonbase.
Written by Andy Rheingold, Tom WarburtonGuest stars Jennifer Hale, Rachael MacFarlane, Jeff Bennett
Episode 21
The KND and the Teens are about to sign the "You don't mess with us-We don't mess with you" Kid-Teen treaty. It is going to be signed by Numbuh 8000 (KND and the Teens leader), but it turns out to be a trap for the KND, making Numbuhs 1 and 274 set out to prevent it after being falsely convicted by the KND.
Written by Mo Willems, Andy Rheingold, Tom Warburton
Episode information updated Jul 23, 2026
Ben DiskinNumbuh 1 / Numbuh 2 (voice)
Lauren TomNumbuh 3 (voice)
Dee Bradley BakerNumbuh 4 (voice)
Cree SummerNumbuh 5 (voice)
Billy West
Richard Steven Horvitz
Brian Tochi
Greg Cipes
Cartoon NetworkUnited States
Curious PicturesUnited States
Cartoon Network StudiosUnited StatesMore shows like Codename: Kids Next Door.
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