Codename: Kids Next Door - Operation Z.e.r.o. May 2026

: In a major series twist, Numbuh 0 is revealed to be Nigel’s father, Monty Uno .

As the KND organization is quickly overrun, Numbuh 1 (Nigel Uno) embarks on a desperate mission to find the legendary hero, , the only operative believed to have the power to defeat Grandfather. Key Revelations and Twists Codename: Kids Next Door - Operation Z.E.R.O.

: The film establishes that Father (Benedict Uno) is actually Nigel’s uncle, making Grandfather Nigel's grandfather. : In a major series twist, Numbuh 0

: The film explains the significance of the Book of KND, a legendary archive of past stories and the source of the organization's power. : In a major series twist