Codename Kids Next Door

The Kids Next Door Organization is a worldwide group comprising thousands of kids joined in mutual struggle against adult tyranny. They fight villains that embody specific menaces to children overall (such as dental hygiene or school lunch). For every member of Kids Next Door, upon following a period of training, they then choose a number or alphanumerical code (deliberately spelled "numbuh") and sent to a "sector", that is a tree house of ludicrous proportions. The main headquarters of the Kids Next Door is a tree house Moon Base. Kids follow their oath of protecting other kids as well as battling adulthood until the age of 13, when they are "decommissioned", a process of wiping their minds of memories of any past KND activity, as they are then teenagers, and a threat to KND. Such a practice has inevitably led to the creation of many KND villains who escaped decommissioning (notably Cree, Numbuh 5's older sister, and Chad, formerly Numbuh 274 and supreme commander of the Kids Next Door).