YMMV / Codename Kids Next Door S 1 E 13 Operation GROWUP

• Growing the Beard: For many fans, this was the point the show grew into something bigger and became really good. It represented the culmination of several elements and plotlines from previous episodes, introduced Father and further deepened the personalities and relationships of the main characters, as well as the workings of the KND organization as a whole.
• Hilarious in Hindsight: Numbuh 1's Insult Backfire to Father becomes this once Operation Z.E.R.O. reveals Father is Numbuh 1's uncle. So Nigel's basically calling himself a complete disappointment.