Codename: Kids Never Die

Codename: Kids Never Die (also known as simply "Kids Next Door", or by its acronym KND) is an American animated series aired on Cartoon Network and created by Tom Warburton about a global organization of children that battle adult tyranny and defend kids worldwide. Each KND operative is known by a numerical codename, spelled "Numbuh" and grouped into teams called "Sectors", located throughout the world.

The series focuses mainly on one particular group of four sectors who conveniently happen to be "Numbuhed" 1 through 4. Although the existence of a greater KND organization beyond these five was established from the very beginning, the series initially focused exclusively on Sector V's exploits as a team. Later episodes elaborated greatly on the worldwide KND, introducing numerous recurring characters and a considerable degree of continuity, as well as on the five main characters' personal lives and exploits. It took place from the Fifth High School War to Seventh High School War.