Codename: Kids Next Door

The WORST episodes of Codename: Kids Next Door

Every episode ever - ranked by fan votes!

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.

Last Updated: 5/7/2022Network: Cartoon Network
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Operation: L.O.V.E.
star
5.67
6 votes

#1 - Operation: L.O.V.E.

Season 4 - Episode 19 - Aired 7/15/2005

Numbuh 3 stars in a romantic musical as the lead girl. But when Numbuh 4 interrupts the play, it becomes a real war on stage between the DCFDTL and the KND.

Operation: K.N.O.T.
star
6.00
4 votes

#2 - Operation: K.N.O.T.

Season 4 - Episode 15 - Aired 4/29/2005

Numbuh 1 battles a group of snake ties with an adult against them.

Operation: C.A.R.A.M.E.L.
star
6.20
5 votes

#3 - Operation: C.A.R.A.M.E.L.

Season 6 - Episode 19 - Aired 11/16/2007

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, She is then seen leaving with a young Blonde girl.

Operation: K.A.S.T.L.E.
star
6.50
8 votes

#4 - Operation: K.A.S.T.L.E.

Season 3 - Episode 12 - Aired 7/30/2004

Numbuh 3 takes her little sister Mushi for a ride through the Rainbow Monkey Sugar Coated Castle of Love, but what promises to be a day of fun is ruined when King Sandy and his knights attack! The insane sovereign has never given up in his quest to marry Numbuh 3, and he threatens to destroy the Rainbow Monkeys unless Kuki agre

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Operation: H.O.U.N.D.
star
6.56
9 votes

#5 - Operation: H.O.U.N.D.

Season 3 - Episode 23 - Aired 11/12/2004

Numbuh 5 takes on a vicious dog who is always eating her homework.

Operation: M.I.S.S.I.O.N.
star
6.67
6 votes

#6 - Operation: M.I.S.S.I.O.N.

Season 5 - Episode 19 - Aired 7/14/2006

Numbuh 4 sets free Mr. Boss, Count Spankulot, Stickybeard, and Soccer Mom and offers them suspended sentences if they do what he says, which is why he has taken the liberty of poisoning their sodas! In 48 hours, the villains' tonsils will inflate to ginormous blimps until their tonsils pop like balloons. Toiletnator escapes from the Arctic Prison and drinks the soda, forcing Numbuh 4 to include him as well. The only way for the villains to get the antidote it to win a bowling tournament being held at Pinhead Lanes Bowling Alley. The reason why Numbuh 4 wants the villains to win is because he's tired of polishing his dad's trophies.

Operation: L.U.N.C.H.
star
6.75
8 votes

#7 - Operation: L.U.N.C.H.

Season 4 - Episode 13 - Aired 2/21/2005

Lizzie feels that Nigel works too much during lunch, so she forces him to have lunch with her, but he can't work. Meanwhile, a group of lunch thieves and their leader Robin Food break into the cafeteria and start stealing everybody's lunches, including Lizzie and Numbuh 1's.

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Operation: T.U.R.N.I.P.
star
6.83
48 votes

#8 - Operation: T.U.R.N.I.P.

Season 1 - Episode 10 - Aired 12/27/2002

When the KND headquarters are flooded by turnips, the gang must travel to the source where they meet an evil monster turnip who has big plans!

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Operation: L.I.C.O.R.I.C.E.
star
6.84
32 votes

#9 - Operation: L.I.C.O.R.I.C.E.

Season 5 - Episode 20 - Aired 8/4/2006

Heinrich Von Marzipan is kidnapped from the KND Arctic Prison by a ship of black licorice pirates. After the theme song, it shows a different scene where a large group of candy pirates are drinking pure sugar. After Stickybeard defeats a candy pirate at drinking sugar. Stickybeard challenges anybody to face Stickybeard. No one answers but Numbuh 5 is next and challenges Stickybeard to a chugging match to see who can drink a cup of sugar faster. Numbuh 5 wants information about Heinrich's disappearance, which somehow involves black licorice, in return if she wins. Stickybeard is even dared when Numbuh 5 says Stickybeard is "Sugar free". Sticky accepts but loses to Abby. Stickybeard asks for 2 outta 3 but Numbuh 5 declines. So Stickybeard begins telling a tale in song, along with the rest of the candy pirates. The pirates tell the tale of Black John Licorice and his pirate crew who find a island near North Dakota filled with red licorice trees. Black John took all the trees but a terrible misfortune was exposed for him and the pirates. The fate was that the licorice turned black and every night, the pirates would turn into licorice and at dawn and day, they would become a pile of bones. The pirates soon discover from a gypsy fortune-teller that they must plant a licorice seed that she gives them on the island so the licorice would grow again, and the curse would be broken. The pirates do so but while on the island, the dawn rose and they became a pile of bones.

Operation: J.E.W.E.L.S.
star
6.86
7 votes

#10 - Operation: J.E.W.E.L.S.

Season 3 - Episode 17 - Aired 8/13/2004

Numbuh 5 journeys to the exotic Al-Suhgar Desert to recover her stolen candy, the Blurpleberry Supreme, and discovers she's not the only one searching for the powerful, mystical candy.

Operation: F.L.U.S.H.
star
6.87
8 votes

#11 - Operation: F.L.U.S.H.

Season 4 - Episode 2 - Aired 11/19/2004

In an attempt to capture the KND's Treehouse, the Adult villains learn that there is no such thing as a "foolproof" plan when the fool you're dealing with is the Toilenator!

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Operation: S.L.U.M.B.E.R.
star
6.89
9 votes

#12 - Operation: S.L.U.M.B.E.R.

Season 3 - Episode 10 - Aired 7/23/2004

Numbuh 86 is having a top-secret girls only slumber party. Numbuh 4 is willing to find out what the slumber party is all about even if it means having to put on a little make up.

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Operation: D.I.A.P.E.R.
star
6.90
10 votes

#13 - Operation: D.I.A.P.E.R.

Season 5 - Episode 3 - Aired 5/20/2005

Numbuhs 1-4 are on a mission to save the babies from being transformed into adults at the hospital. After they return to the treehouse, the try to care for the babies, with little success. Numbuh 5 then comes in and yells at them for taking the babies, saying they were born there. She then asked Numbuh 1 if he even knows where babies come from, he replies "Of course I do, they come from baby eggs," Numbuh 5 then attempts to tell them were babies come from, but the babies start crying. Numbuh 1 blames Numbuh 5 and she leaves.

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Operation: T.R.I.C.K.Y.
star
7.00
62 votes

#14 - Operation: T.R.I.C.K.Y.

Season 3 - Episode 18 - Aired 10/29/2004

Trivial Rival Instigates Candy Krazy Yearning

Operation: B.R.I.D.G.E.
star
7.00
7 votes

#15 - Operation: B.R.I.D.G.E.

Season 6 - Episode 9 - Aired 1/12/2007

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.

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Operation: U.N.C.O.O.L.
star
7.00
6 votes

#16 - Operation: U.N.C.O.O.L.

Season 3 - Episode 19 - Aired 10/29/2004

Numbuh 4 tries to get his candy back from Stickybeard on Halloween.

Operation: S.A.T.U.R.N.
star
7.00
9 votes

#17 - Operation: S.A.T.U.R.N.

Season 4 - Episode 10 - Aired 4/29/2005

Stuff Abducted Turns Up Nowhere The KND try to stop a mysterious being from collecting all the Rainbow Monkeys in the world-- including Numbuh 3's beloved toys. A parody of Star Trek: The Motion Picture.

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Operation: H.O.L.I.D.A.Y.
star
7.00
10 votes

#18 - Operation: H.O.L.I.D.A.Y.

Season 5 - Episode 12 - Aired 1/20/2006

Numbuhs 2 and 3 are about to take a plane of hamsters to Jamaica for their annual holiday vacation. Lizzie then arrives at the treehouse, intent on giving Numbuh 1 a pie she had baked for him. Numbuh 2 and 3 inform her that Numbuh 1 is on a secret mission in Sector J (Jamaica), but they inadvertently mention that he is actually on vacation with Numbuh 10, who is the prettiest of all the operatives according to Numbuh 2 and 3. Lizzie becomes furious that Numbuh 1 lied to her and that he may be cheating on her with Numbuh 10. She demands Numbuh 2 and 3 to take her to Sector J so that she can deliver the pie to Numbuh 1 to his face.

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Operation: H.O.M.E.
star
7.00
5 votes

#19 - Operation: H.O.M.E.

Season 5 - Episode 21 - Aired 8/4/2006

It starts out when Numbuh 3 was a baby, she receiving a purple rainbow monkey called "My First Rainbow Monkey" at birth. The next couple of scenes show Numbuh 3 taking her first steps, learning to ride a bike, and graduating into the Kids Next Door with My First Rainbow Monkey by her side each time. My First Rainbow Monkey also grows a beard throughout these flashbacks.

Operation: H.U.G.S.
star
7.06
35 votes

#20 - Operation: H.U.G.S.

Season 3 - Episode 16 - Aired 8/13/2004

Numbuh 4's disgust at anything Rainbow Monkey only increases when he finds himself trapped on Rainbow Monkey with a garganturn, montstrous Rainbow Monkey Kong.

Operation: S.P.I.N.A.C.H.
star
7.11
9 votes

#21 - Operation: S.P.I.N.A.C.H.

Season 6 - Episode 7 - Aired 1/5/2007

Amerigo Vespinaccio tries to spread spinach throughout the school, and it's up to Sector V to stop him.

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Operation: C.A.N.Y.O.N.
star
7.11
36 votes

#22 - Operation: C.A.N.Y.O.N.

Season 5 - Episode 11 - Aired 1/20/2006

The scene opens up with a large barricade in the surrounding desert that's blocking a large amount of traffic. KND personnel who is led by Numbuh 5 guard this barricade as a bus full of senior citizens charges through, crashing through the barricade only to be stopped a moment later by a large net trap. Numbuh 5 deters the bus to retreat, falsely claiming that "denture-eating bears" were seen around the area, which causes the senior citizens to hurriedly retreat. It is then discovered that the Kids Next Door are blocking all ground and air access towards the Grand Canyon, with Numbuh 2 forcing planes to turn around from passing over the area.

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Operation: P.I.R.A.T.E.
star
7.11
44 votes

#23 - Operation: P.I.R.A.T.E.

Season 1 - Episode 8 - Aired 12/20/2002

Stickybeard and his candy-stealing pirates invade the Kids' tree fort, stealing all their candy... including Numbuh 5's secret stash, and Numbuh 5! Can the rest of the kids recover their teammate and their candy?

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Operation: G.R.A.D.U.A.T.E.S.
star
7.12
34 votes

#24 - Operation: G.R.A.D.U.A.T.E.S.

Season 3 - Episode 15 - Aired 8/6/2004

Hoagie and the gang go to the KND Academy to watch his brother Tommy graduate while Father plans an all-out attack.

Operation: N.O.-P.O.W.U.H.
star
7.14
72 votes

#25 - Operation: N.O.-P.O.W.U.H.

Season 1 - Episode 6 - Aired 12/13/2002

When Numbah 3 releases the hamsters powering the treehouse, Grandma Stuffums attacks! Will the Kids Next Door be able to fend off this foody fiend?

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