Codename: Kids Next Door - Operation Z.e.r.o. -

is a feature-length made-for-TV movie that serves as a pivotal turning point in the lore of the Codename: Kids Next Door series . Originally aired on Cartoon Network on August 11, 2006, the film explores the origins of the organization and introduces its most formidable threat to date. Plot Overview: The Return of the Ultimate Evil

: The film establishes that Father (Benedict Uno) is actually Nigel’s uncle, making Grandfather Nigel's grandfather. Codename: Kids Next Door - Operation Z.E.R.O.

: It is revealed that the Delightful Children From Down The Lane were originally Sector Z , a top-tier KND team brainwashed by Father. is a feature-length made-for-TV movie that serves as