Carl attempts to blot out the rays of the sun.

Yin reluctantly goes on a date with Coop, and she falls under his evil spell.

Badfoot tries to steal a powerful artifact from Master Yo.

Yang loses his emotions after he is zapped by Fred.

Yang takes a job at an amusement park that turns out to be anything but fun.

Yin and Yang are magically stuck together by Mastermind so they will learn to cooperate with each other.

When Yang separates himself from Yin and Master Yo, he saves a robot, and they start to act like brothers. But Yin is feeling suspicious and jealous and discovers the robot is actually a spy made by Zarnot sent to destroy Yang.

Yin, Yang and some of their friends accept a free vacation to a mysterious island, not knowing that it's a trap set by Smoke.

Yin hosts her first slumber party but she drives everyone crazy with her strict schedule.

Yin and Yang prepare to go on vacation. Coop returns and tried to warn them of The Night Master's energy escaping, but they ignore him until it's too late.

Yin and Yang begin magic training at Camp Magic Pants and become involved in pranks that get them into trouble.

Carl casts an ugly spell on Yin and Yang after Yin insults Carl and calls him a "buglie".

Ultimoose and Yang search for an amulet that will give them all of the Night Master's powers.

Carl magically switches brains with Master Yo in an attempt to destroy the Woo Fo warriors.

Yin takes credit for saving the mayor, without acknowledging Yang's help.

Master Yo faces an old nemesis he has never been able to defeat.

Master Yo is sick of Yin and Yang disrespecting him. Yin and Yang are sick of Master Yo treating them like babies. When young Kraggler switches ages with Yo (part of a diabolical plan), Yin and Yang are forced to babysit the three-year-old Yo, and he reveals how powerful (and bratty) he was as a child.

Yin and Yang attempt to defeat a half-human, half-bull monster.

Mr. Pondscum realizes he isn't a goldfish but a polliwog.

Coop's mom is throwing a "welcome back/thanks for saving the world all by yourself" party, and Yin and Yang are the only ones not invited. Meanwhile, three flunkies join together and try to get into The Night Master's fortress. However, they need the spare key, which the Night Master gave to Coop!

Yin and Yang are pitted against each other in a fight.

Melodia the Aardvark Princess returns to claim Yang until Fastidous makes Yin mad with the Stink Aardvarks.

Carl forms a league of evil with three other villains when they all rent an apartment together.

Yang endorses a toy line for money but doesn't realize that the toys are harmful to children.

Yang develops a rare tooth condition and could end up as dinner on Edna's table.