The BEST episodes of Codename: Kids Next Door season 5

Every episode of Codename: Kids Next Door season 5, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Codename: Kids Next Door season 5!

The objective of Codename: Kids Next Door is simple--to lead young people everywhere in the fight against the injustices of a not-so-kid-friendly world! From the fortress if their treehouse headquarters, this covert team of 10-year-olds uses their patented 2x4 technology to put a stop to anyone who gets in the way of their mission. So hurry and join the KND revolution.

Last Updated: 4/7/2024Network: Cartoon NetworkStatus: Ended
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Operation: B.U.L.L.I.E.S.
star
8.26
42 votes

#1 - Operation: B.U.L.L.I.E.S.

Season 5 - Episode 4 - Aired 10/21/2005

Numbuh 2 and Numbuh 4 visit Bully Island, a bully habitat owned by Jerry Rassic (an obvious parody of Jurassic Park). Numbuh 2 is interested in the scientific aspect of it, while Numbuh 4 is only in it to see the different types of bullies on the island. After seeing a 'teasing time' (similar to feeding time, but instead kid crash dummies are set on swings and Spitballasaurises come and shot spitballs at them), Numbuh 2 asks Jerry anxiously if he's ever worried about his own safety, being surrounded by bullies all the time. Jerry replies that Bully Island is perfectly safe, and the bullies are in cages that keep them away from him and his sister Eliza, who also lives on the island.

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Operation: N.A.U.G.H.T.Y.
star
8.19
16 votes

#2 - Operation: N.A.U.G.H.T.Y.

Season 5 - Episode 8 - Aired 12/6/2005

The KND try to save Christmas when the DCFDTL frame them for the theft of a gift-creating contraption called the "REINDEER System" created by Santa.

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Operation: H.O.T.S.T.U.F.F.
star
8.08
13 votes

#3 - Operation: H.O.T.S.T.U.F.F.

Season 5 - Episode 18 - Aired 7/13/2006

Before the theme starts, Kani tells his eldest daughter, Kuki, not to touch the thermostat even though the house is unbearably cold. After seeing the thermostat's temperature dropping to colder temperature, Kuki decides to touch the thermostat and make things hotter. The next day, the other Sector V agents are gathered for a meeting. Nigel goes jabbering on about cauliflower being rainbow monkey brains. The rest of Sector V doubted this and, while Nigel jabbers on, Kani comes in and tells the agents about Kuki turning up the thermostat. Nigie leaves Wallabee to guard Kani. The rest of Sector V shows up to Kuki's house which is now transformed into an active volcano and ready to explode. Rachel suggests sending Sector P in Pompeii to turn down the thermostat as they have more experience with volcanoes but Numbuh 1 disapproves of this since Kuki is a member of their sector.

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Operation: D.A.D.D.Y.
star
7.86
14 votes

#4 - Operation: D.A.D.D.Y.

Season 5 - Episode 15 - Aired 6/12/2006

Numbuh 85 is taken to the KND Hairstyle Headquarters (Sector HH). Numbuh VO5 and his hair doctors try to get his hair back to some form of coolness. It didn't work. Numbuh 1 hides in the room that Numbuhs 83, 84, and 85 are in and informs the trio that the hair doctors were trying to rub dog poop on his head to see if it (his hair) can grow back. Numbuh 1 then notices Numbuh 85's haircut asking "Leaping Lizzies! What did they do to you?!". Numbuh 85 responds that the hair doctors didn't do it, his father did.

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Operation: O.U.T.B.R.E.A.K.
star
7.85
13 votes

#5 - Operation: O.U.T.B.R.E.A.K.

Season 5 - Episode 10 - Aired 1/14/2006

The KND scientists at the Deep-Sea Science Lab capture "Patient C", due to their belief that she has cooties. When Cree lets Patient C out of her containment unit, in Operation: V.I.R.U.S. , as revenge for the KND ruining Cree's date with Numbuh 9, can Sector V recapture the escape without catching "the C.O.O.T.I.E.S."?

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Operation: S.P.A.N.K.E.N.S.T.I.N.E.
star
7.73
11 votes

#6 - Operation: S.P.A.N.K.E.N.S.T.I.N.E.

Season 5 - Episode 17 - Aired 7/5/2006

Once-sweet Mushi Sanban has one thing in mind after Numbuh 2 got her grounded for forking Numbuh 3's Posh-Party Rainbow Monkey Doll- her lust for vengeance. She plans his comeuppance by digging the Rainbow Monkey from its burial site at Plush Meadows Stuffed Animal Cemetery, and transferring Count Spankulot's powers into her Spankenstine Monster. Meanwhile, Numbuh 2 faces the monster at the local grocery store while getting chocolate sauce. After defeating the Spankenstine Monster, Numbuh 2 returns to the house to confront Mushi, however Numbhuh 2 is out matched by Mushi's Crayon base powers. However, Count Spankulot sucks out the stolen powers in the Rainbow Monkey doll to gain his powers back and unleshes a spanking wrath for transferring his powers to stuffed animals. Count Spankulot then joins the Gilligans and the Sanbans for dessert, and Numbuh 2 then sneaks a sundae to Mushi, only to discover her riding away with King Sandy.

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Operation: I.T.
star
7.60
10 votes

#7 - Operation: I.T.

Season 5 - Episode 22 - Aired 8/24/2006

Every year, the KND choose someone to be "IT" which involves a game of tag to choose the next Supreme Leader, so Numbuh 362 sets up the game after she decides to resign after being tired of the job. However, when Numbuh 2 accidentally tags Father, he becomes Supreme Leader. Numbuh 1 and Numbuh 362 then must stop him before he wipes out the entire KND.

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Operation: F.I.S.H.Y.
star
7.55
11 votes

#8 - Operation: F.I.S.H.Y.

Season 5 - Episode 5 - Aired 10/21/2005

Numbuh 4 shakes the bowl that contains Numbuh 3's pet fish, Mr. Fishy, and kills him by accident. When Numbuh 3 sees her fish dead, she assumes he's just sleeping. The team decides that Numbuhs 2 and 4 should dump the fish while 1 and 5 try to win a new one from a fair, all without Numbuh 3's knowledge of the plan. After they leave, Numbuh 3 comes to check on Mr. Fishy and thinks that someone stole him when she finds him missing.

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Operation: C.A.K.E.D. F.I.V.E.
star
7.54
13 votes

#9 - Operation: C.A.K.E.D. F.I.V.E.

Season 5 - Episode 13 - Aired 4/14/2006

Once again, a special birthday cake is being made for the Delightful Children from Down the Lane. The KND take a trip to the Alamode where tour guide Numbuh 50 Million B.C. tells them about the 1800s KND operatives who were determined to steal the Annoyingly Cute Triplets Who Lived Upon the Hill's Birthday Cake, a delicious cake made by their mother. However, in their attempt to get the recipe, an ice cream trap was set off, freezing over 5000 KND Operatives. It took 10 years to thaw them out, and all were decommissioned since they were technically too old to be KND. All were found except Numbuh 19th Century, the operative sent in to get the recipe and set off the trap, until the current KND recently discovered him. After being thawed out, he's confused by the new modern era, especially with the fact there are now girls in the KND.

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Operation: S.A.F.A.R.I.
star
7.54
13 votes

#10 - Operation: S.A.F.A.R.I.

Season 5 - Episode 7 - Aired 10/28/2005

Numbuh 1 goes to the doctor to get moosebump shots, and the doctor turns out to be Chester who turns him into a moose. Chester then chases him around his jungle office using various weapons to shoot shots at him including a cross bow and a rifle until he finally hits Numbuh 1. Chester then reveals that he was really creating moosebumps to turn kids into mooses and ground up their antlers to make moosicles, which are ice creams with mooses' antlers coming out of them. It is then revealed that it was just a pathetic attempt by Numbuh 1 to change his mother's mind about giving him his moosebump shots. It is then revealed that Chester really is the doctor he goes to. The end credits is a moosicle ad.

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Operation: E.L.E.C.T.I.O.N.S.
star
7.39
46 votes

#11 - Operation: E.L.E.C.T.I.O.N.S.

Season 5 - Episode 1 - Aired 9/30/2005

The KND are up against more than they bargained for when they try to prevent the DCFDTL for dashing the school elections, especially when the situation involves 8th graders.

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Operation: R.E.C.R.U.I.T.
star
7.38
13 votes

#12 - Operation: R.E.C.R.U.I.T.

Season 5 - Episode 14 - Aired 6/12/2006

n eccentric child named Bobby is obsessed with the KND, and has great desire to join. After mailing 38 videos to them, he abruptly receives a message on his computer that reads "are u in?". He is then lead to an abandoned KND treehouse, where he is given the decision to continue life as a normal kid, or to face the danger of being a KND operative. After choosing to be an operative, Sector V gives him various missions, but can he handle it?

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Operation: D.U.C.K.Y.
star
7.36
14 votes

#13 - Operation: D.U.C.K.Y.

Season 5 - Episode 2 - Aired 10/14/2005

Tommy refuses to take a bath, until he goes down the drain (literally)! He meets Captain Jimmy, a parody of Captain Kirk in Star Trek, who is the high-strung leader of the crew of a ship called the S.S. Stinkypants. Tommy gets inevitably involved in a battle with Moby Duck, which ends with the crew hiding from the giant bird in bubble fog. The team attacks Moby Duck after hearing an inspired speech by Tommy, but the plan goes overboard and Tommy and Captain Dirt learns why it's usually a good idea to listen to your parents!

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Operation: C.L.O.W.N.
star
7.33
39 votes

#14 - Operation: C.L.O.W.N.

Season 5 - Episode 16 - Aired 7/5/2006

The episode starts with Numbuh 2 cracking bad puns during his report on King Arthur and his knights. Later, Numbuh 5 punches Numbuh 2 and he asks what was that for. Numbuh 5 says it's for having her listen to those lame jokes. Numbuh 2 counters with a newspaper column saying he's the four star riot of fourth grade. Numbuh 5 than says the column was written by Numbuh 2 himself. This doesn't effect Numbuh 2 and he asks if he should of given himself more stars.

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Operation: B.R.E.A.K.U.P.
star
7.31
42 votes

#15 - Operation: B.R.E.A.K.U.P.

Season 5 - Episode 6 - Aired 10/28/2005

Wallabee Beetles is charged with protecting his mom's prized/priceless koala bear vase, or he'll have to go to Ballroom Dancing School for ballroom dancing lessons. This becomes increasingly hard as the vase is stolen. He follows the robber, which takes him to a base ball stadium and used for a baseball-like game called "Vaseball", where kids use glass and pottery as the balls. Numbuh 4 thinks he must play, and turns out to be very good. But then, the pitcher throws the vase he was supposed to protect. He tries to get away with the vase, only to find himself in a room of bullies. In the office, Wallabee uncovers an insidious plot by his old friend turned enemy Ernest (the commissioner of Vaseball) and his band of bullies, who plan to rat the kids out for their misbehavior, so they can get the kids grounded that way no one can tattle on them as they vandalize every house in the neighborhood. He accidentally knocks over a bookshelf -- "Uhh... Does that count as a home run?" He gets away, only to find himself in a match to the death with Ernest. They duel with plates, vases, and all sorts of breakable china. The only thing they don't destroy is the vase Wallabee is supposed to protect. Finally, he knocks a bookcase on Ernest, knocking him out cold. He saves the vase, but the other bullies have already carried out their plan. Every kid (including Ernest) is grounded except for Wallabee. "He will always live in the hearts of kids who love to break things." As the screen goes black, we can hear the vase finally breaking and his mother angrily screaming "WALLABEE!". It's unknown if she follows through with her earlier threat.

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Operation: V.I.R.U.S.
star
7.27
41 votes

#16 - Operation: V.I.R.U.S.

Season 5 - Episode 9 - Aired 1/14/2006

Numbuh 5 tries to save her sister Cree from a contagious disease that KND have made in revenge for creating chicken pox which is revealed to be a giant pimple on Cree's cheek. Cree has unleashed Patient C before leaving the KND Scientific Research SeaBase.

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Operation: H.O.M.E.
star
7.20
10 votes

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

Season 5 - Episode 21 - Aired 8/10/2006

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: C.A.N.Y.O.N.
star
7.20
41 votes

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

Season 5 - Episode 11 - Aired 1/21/2006

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: M.I.S.S.I.O.N.
star
7.18
11 votes

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

Season 5 - Episode 19 - Aired 7/13/2006

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: H.O.L.I.D.A.Y.
star
7.13
15 votes

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

Season 5 - Episode 12 - Aired 1/21/2006

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: D.I.A.P.E.R.
star
7.07
14 votes

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

Season 5 - Episode 3 - Aired 10/14/2005

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: L.I.C.O.R.I.C.E.
star
6.92
37 votes

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

Season 5 - Episode 20 - Aired 8/10/2006

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.