The X's
Y's Up (1x27)
Air date: Sep 22, 2006
The archenemies of the Xs, the Ys, move in next door. The Xs suspect that they are up to no good, but are not able to prove anything until the Ys show their true colors during Glowface's next plot.
- Premiered: Nov 2005
- Episodes: 38
- Followers: 0
- Ended
- Nickelodeon
- Unknown