Yin Yang Yo!

Season 1, Episode 4

Episode Title: An Oldie But a Goodie

Air Date: 2006-09-04

Overview:

Yin and Yang tell Yo that he is old, and Yo makes them pick up his medication. Yo throws a party to look cool, but Yin and Yang make Yo's old enemy, Kraggler, mad. Kraggler turns everyone, except Yin and Yang, into old people.