Numbuh 451, otherwise known as Ava "Firecracker" Baros, was the Kids Next Door's premier explosive expert. If it existed, then Numbuh 451 knew not only how to blow it up, but often times, how to turn it into an explosive as well. But there is more to her than what the surfaces shows. She's known many of the KND's finest heroes and fallen operatives. This is her story.

WARNING: SOME CONTENT IN THIS FIC MAY BE DISTRESSING TO SOME VIEWERS. IF YOU DON'T LIKE WHAT YOU ARE READING, PLEASE GO SOMEWHERE ELSE. THANK YOU! This is basically KND, but it's an AU where my character, Delilah exists, and how she came to live in Gallagher County. Co-written by giggly-gamer on Discord

My genderbent versions of the pilots of the KND universe-two based on Kenny and the Chimp, a show Mr. Warburton wanted to make for Cartoon Network but got rejected. I hope you enjoy!

One year has passed since Father's defeat. The members of Sector V, without their memories, begin their sophomore year in highschool. However, the world isn't as peaceful as they think: the Galactic Kids Next Door have made Earth their next target while an old enemy lifts their head, seeking revenge. Only the KND and the TND stand a chance against them, but will they succeed?

When a rogue operative threatens to reveal the GKND, Nigel is sent back down to stop them by any means necessary. But people have changed and the boy is tangled in a web of love and betrayal as he finds out just who he has been assigned to hunt down.

(F)ormer (R)epulsive (A)lly (C)auses (T)urmoil (U)nfolds (R)apidly (E)xaggerating (D)oom. (M)istakes (E)at up (M)ornful (O)perative (R)aging uncle (I)mproves (E)tiquette & (S)elflessness.

Note: Not available to everyone. At least yet. Don't open this fanfic.

Numbuh Vine, AKA Lizzie, receives her first Galactic mission to disguise herself as a regular human girl so she can test the loyalty of a certain member of the Kids Next Door. Trials and tribulations allow Lizzie to take extreme measures to complete her mission, which leads to her downfall and regret in what she has done when it is too late.

Father's workaholic tendencies come back to bite him when he grows too sick to stand. Even then, when the call for backup goes out, he crawls out of bed to try and destroy the K.N.D once and for all, with disastrous results. But when his illness subdues him, every operative is happy to lock him up and throw away the key. Except for a certain medic. Rated T for swearing

Numbuh One returns to Earth but with him comes a danger never seen before. Can he and Sector V save the day or will children all over the universe be the losers?

One night, Wallabee Beatles, aka Number 4, catches a cold after accidentally leaving the fridge open. Will he be recovered? Parody of the SpongeBob episode "Suds".

WARNING - THIS STORY MAY DISTRESS SOME VIEWERS. A story inspired by a few of my favorite stories on this site!

This is a story I wrote on Ficwad and deleted so level with me while I try to remember the chapters, If you would like a new Character list go to Just Expressing and look under the category Codename Kids Next Door to find the character list under my II ff

Five years ago, Supreme Leader Numbuh 100 failed to uncover a conspiracy that resulted in the wrongful decommissionings of several operatives. Now, it's up to the teenagers to pick up where the KND left off, uncovering secrets that could destroy themselves and each other. But, maybe, they might just find out who the true enemy's been all along.

Reliving your childhood years and into teens is one thing in your average isekai story, having it happen in the KND world is a different matter altogether. Very first Fanfic I made prior to my other fics. Posted on Spacebattles, now crossposting it over here.

The last of the most prosperous KND we know of are all decomissioned. Fanny Fullbright and Wallabee Beatles are the last to go, but make a promise to be friends no matter what happens after they are both wiped of their memories of each other. How will they find each other again?

Numbuhs Twenty-Three and Eighty-Three know how to whistle. but Numbuh Three doesn't. so they try teaching her how to do it in many different ways. even Mushi can whistle. and she's older than her. Numbuh Five suggests she'd go practice in front of the washroom mirror inside her house. and when she succeeds, she tells them she can whistle now.

When Sector V got reports of a strange, hooded wearing teenager with a hook roaming around their neighborhood, they were all eager to get to the bottom of it, especially when said figure was spotted luring Numbuh 5 somewhere with a bag of her favorite candy. Cree, meanwhile, was not expecting her sisters' friends to crash their movie night over her prosthetic and hoodie.

Cada participante estaba dispuesto a dejarse la piel para permanecer de pie en un juego que los consideraba basura. Quedó fuera de mi ya, entender el suplicio al que ella fue conducida, pero créanme cuando les digo que les proporcionaré un destino igual.

Harvey plans a tip Mars that goes horribly wrong. Parody of the SpongeBob episode, "Sandy's Rocket"

A collection of Romances involving Kids next Door, just a dumping grond for when i feel like doing some SFW stuff but don't wanna do a whole series about it Now with tags on the side of each chapter saying which couples are taking part in the chapter, if the chapter doesn't have a tag it means more than two couples are in the chapter Please leave a review

A story rewrite. Takes place with the Kids Next Door as teens. Fanny was known for being a lot of things. She was The Fan, leader of the Teen Ninjas. Tough, brash, independent, highly respected, and most importantly, cool. She had a reputation to keep up with. And one boy just might destroy it.

Los chicos del Barrio ya no son lo que eran en tiempos del grandioso Sector V, ahora hay problemas graves. Uno siguió con su vida como miembro de los Chicos del Barrio Galácticos y el resto creció, inevitablemente. Pero y si el líder supremo pidiera ayuda ¿Uno volvería para ayudarlos? ¿Sería capaz de ver a sus amigos convertidos en adolescentes? Houston, tenemos problemas

Nigel discovers he has the same powers as Father, his archenemy. Because he doesn't want anyone to know about this, he goes in secret asking the man for help. He refuses but in their altercation Nigel accidentally turns Father into a child. Now they both need each other to gain what they want. Rated M for chapter 9

Fed-Up Evildoer Acquires Revenge (Rated T for blood)