The BEST episodes of Codename: Kids Next Door season 4

Every episode of Codename: Kids Next Door season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Codename: Kids Next Door season 4!

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 of 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: 12/20/2024Network: Cartoon NetworkStatus: Ended
Operation: M.U.N.C.H.I.E.S.
star
9.17
12 votes

#1 - Operation: M.U.N.C.H.I.E.S.

Season 4 - Episode 14 - Aired 5/13/2005

The KND have run out of Rainbow Munchies, their favorite cereal, so they send out tennis-ball probes to find a box. They find it in Aisle Number 60-teen at the Supervillains Supermarket & Deli, but it is the last one the store has, and it is as popular with the bad guys as it is with the KND!

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Operation: C.L.U.E.S.
star
8.33
15 votes

#2 - Operation: C.L.U.E.S.

Season 4 - Episode 4 - Aired 11/26/2004

Numbuh 3's family are invited to Numbuh 2's house, where Mrs. Gilligan is hoping to get a promotion out of this. It is later revealed that the Rainbow Monkey is stabbed by a fork.

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Operation: M.A.U.R.I.C.E.
star
7.90
10 votes

#3 - Operation: M.A.U.R.I.C.E.

Season 4 - Episode 18 - Aired 7/8/2005

Maurice, a member of the Kids Next Door is decommissioned. Numbuh 5 is saddened by it, and suggests that they monitor Maurice to make sure the teenagers do not recruit him.

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Operation: M.A.C.A.R.R.O.N.I.
star
7.87
16 votes

#4 - Operation: M.A.C.A.R.R.O.N.I.

Season 4 - Episode 6 - Aired 12/3/2004

The KND try to protect the Macaroni Museum of Art from being ransacked, with the worst KND operative ever, Marty Sullivan, (aka Numbuh 13), on their side.

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Operation: S.I.T.T.E.R.
star
7.86
14 votes

#5 - Operation: S.I.T.T.E.R.

Season 4 - Episode 9 - Aired 4/29/2005

Numbuh 2's mom has to go out, so she finds Cree to babysit Tommy and him.

Directors: Tom Warburton
Writer: Mo Willems
Watch Now:AmazonApple TV
Operation: S.N.O.W.I.N.G.
star
7.82
11 votes

#6 - Operation: S.N.O.W.I.N.G.

Season 4 - Episode 17 - Aired 5/27/2005

Jimmy Nixon McGarfield (the fourth-grade president) forces the other kids back into school on a first snow day for a special assembly after Numbuh 1 is too sick to play.

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Operation: C.A.K.E.D.-F.O.U.R.
star
7.75
16 votes

#7 - Operation: C.A.K.E.D.-F.O.U.R.

Season 4 - Episode 8 - Aired 2/21/2005

The KND tube race to get the DCFDTL's delicious birthday cake.

Directors: Tom Warburton
Writer: Mo Willems
Watch Now:AmazonApple TV
Operation: C.L.O.S.E.T.
star
7.73
11 votes

#8 - Operation: C.L.O.S.E.T.

Season 4 - Episode 16 - Aired 5/20/2005

The KND try to rescue a boy from a monster in the closet.

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Operation: P.O.O.L.
star
7.71
17 votes

#9 - Operation: P.O.O.L.

Season 4 - Episode 7 - Aired 12/10/2004

Numbuh 4's new pool is actually a portal to an alternate version of the KND Universe where their counterparts known as the DNK (Destructively Nefarious Kids) are evil. The kids do all the adults' job whereas the adults sit around and play video games. While swimming in the pool, Lizzie is captured by an evil opposite of herself, Eizzil Enived (Lizzie's name backwards), and Nigel follows the captor back to her home universe.

Directors: Tom Warburton
Writer: Mo Willems
Watch Now:AmazonApple TV
Operation: F.E.R.A.L.
star
7.70
10 votes

#10 - Operation: F.E.R.A.L.

Season 4 - Episode 22 - Aired 7/22/2005

Numbuh 1 and Sector V are on Rainbow Monkey Island trying to take "The Code" from the Delightful Children.

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Operation: R.A.B.B.I.T.
star
7.69
16 votes

#11 - Operation: R.A.B.B.I.T.

Season 4 - Episode 1 - Aired 11/19/2004

Numbuhs 2 and 5 travel through the school jungle gym to help find the First Grade's missing pet bunny, Mr. Fluffalupagus, from Heinrich Von Marzipan, who kidnapped him and plans on making chocolate bunnies from real bunnies by dipping them into the chocolate volcano.

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Operation: N.U.G.G.E.T.
star
7.69
16 votes

#12 - Operation: N.U.G.G.E.T.

Season 4 - Episode 5 - Aired 12/3/2004

Numbuh 4 tries to protect chicken nugget mines from the DCFDTL.

Directors: Tom Warburton
Writer: Mo Willems
Watch Now:AmazonApple TV
Operation: F.O.O.D.F.I.T.E.
star
7.67
15 votes

#13 - Operation: F.O.O.D.F.I.T.E.

Season 4 - Episode 3 - Aired 11/26/2004

Gramma Stuffum forces the kids to eat her food.

Directors: Tom Warburton
Writer: Mo Willems
Watch Now:AmazonApple TV
Operation: C.H.O.C.O.L.A.T.E.
star
7.63
16 votes

#14 - Operation: C.H.O.C.O.L.A.T.E.

Season 4 - Episode 11 - Aired 5/6/2005

Numbuh 5 tries to stop Heinrich, now a chocolate monster (recapping the aftermath of "Operation: R.A.B.B.I.T."), from destroying her friends.

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Operation: M.A.T.A.D.O.R.
star
7.54
13 votes

#15 - Operation: M.A.T.A.D.O.R.

Season 4 - Episode 12 - Aired 5/6/2005

Numbuh 4 must choose between his job as a KND operative or be a bully fighter.

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Operation: C.O.U.C.H.
star
7.50
10 votes

#16 - Operation: C.O.U.C.H.

Season 4 - Episode 20 - Aired 7/15/2005

Numbuh 4 tries to battle it out with an evil adult in his couch.

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Operation: F.L.U.S.H.
star
7.40
15 votes

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

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

Mr. Boss, Knightbrace, Mr. Wink & Mr. Fibb, and the Crazy Old Cat Lady are taking over the treehouse of Sector V, and the Toiletnator tries to get rid of the KND for good, or so he thinks.

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Operation: D.O.D.G.E.B.A.L.L.
star
7.27
11 votes

#18 - Operation: D.O.D.G.E.B.A.L.L.

Season 4 - Episode 21 - Aired 7/22/2005

Numbuh 4 tries to battle against the Dodgeball Wizard for his rank.

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Operation: S.A.T.U.R.N.
star
7.25
16 votes

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

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

The KND try to stop a mysterious being from collecting all the Rainbow Monkeys in the world-- including Numbuh 3's beloved ones.

Watch Now:Apple TV
Operation: L.U.N.C.H.
star
7.15
13 votes

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

Season 4 - Episode 13 - Aired 5/13/2005

Lizzie feels that Nigel works too much during lunch, so she forces him to have lunch with her, but he cannot 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.

Watch Now:Apple TV
Operation: K.N.O.T.
star
7.00
10 votes

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

Season 4 - Episode 15 - Aired 5/20/2005

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

Operation: L.O.V.E.
star
6.46
13 votes

#22 - 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.