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.

The Sanbans are going to Tokyo, Japan for a family reunion. There, Kuki and Mushi will meet all of their relatives they've never met before and will have lots of fun!

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.

Rachel is forced to have vacations as she hasn't stopped working in more than a year, the girl obviously doesn't listen to her friends and tries having her own kind of fun during her break *This was supposed to be the 50th story of the Romance In the KND series but I developed it so much in my head that I decided to make a complete story out of it

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.

In this story, Aaron's a superpowered teenager who's...not from around here. When trying to do what's right, his actions get the attention of the Kids Next Door. They might not trust him, but they'll have to if it means saving more than every kid's childhood from a bigger threat than Father. (Takes place after Operation: T.A.P.I.O.C.A.) Tell what you guys think! I hope you like it!

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?

Their childhood dreams used to consist of fighting adult tyranny, but now they're full of college acceptance letters, state championships, good grades and getting laid. A teen fic starring Sector V and others.

A small stream of liquid trickled out from between his nephews fingers, dripping onto the carpet. It was crimson coloured liquid. Red...liquid... Father's yellow orb eyes widened in surprise as he realized what was happening to Numbah 1. "Are you-are you bleeding!" Father asked, anger replaced with concern as his nephews strange behaviour now made sense. (One Shot)

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

My genderbent version of season 1 of the show. I hope you enjoy! Apologies for the delay! I'll try to post new chapters as soon as I can!

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

The Lunar Base of the Kids Next Door receives an encrypted message from Sector XW45-M. Numbuh 362 and 86 go to investigate but are interrupted by a nebulous storm. Chad, former Numbuh 274, manages to pass through and discovers an asteroid, which has an old KND ship. Inside, they find an agent still alive but in hibernation, possibly from the first generation of KND.

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.

(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.

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

Pero ese es el problema, el maldito problema. Wally Torres no merece el amor de Fanny, él no es apto para tal cosa. Y como el homicidio no es una opción viable, tuve que tomar medidas drásticas.

Being sold to pay off a debt is not what I would like to happen to me. However, I don't have many options and I will do everything in my power to help these children, I will also take care of them until the debt is paid off. Until then, I'll just have to be the agent they want me to be. Kids Next Door, attack!

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!

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.

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?