Codename: Kids Next Door, Season 6

Numbuh 74.239:
We need kids like you to help us learn about planets that have been infected!

Numbuh 1:
Infected? By what?

Numbuh 74.239:
By adulthood. The horrible truth Nigel, is that adulthood is a disease! Sweeping the universe in an alarming rate! Without galactic-level operatives, more and more planets where kids rule will fall. By joining us, you won't be saving a neighborhood, or even a planet from adult tyranny. You will be saving the universe.

Numbuh 1:
I- I understand. Just tell me when I'll be back.

Numbuh 74.239:
Back? Oh, you can't ever come back.

Numbuh 1:
What? But what about my family? What about my friends?

Numbuh 74.239:
Your friends can't ever know. I know it's hard, but earth people just aren't ready to know about the galactic fight against adulthood. If you honor what your friends are fighting for, you'll make that sacrifice. But, as for your family.

[Numbuh 74.239 extends his hand towards Monty Uno and Mrs. Uno, who are present.]