Yin Yang Yo!

Yang hurts Yin's feelings when he starts training under Ultimoose.

Master Yo gives his young protégés a test, which involves having them watch a seemingly harmless rock named Hershel.

Carl, the Evil Cockroach wizard, gives Yin and Yang a new TV with only one remote. Yin and Yang fight over the remote, giving Carl a chance to destroy them.

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.

Yin and Yang wish to lose their bossiness and aggression and in the process accidentally create a new villain, Yuck.

Yang fakes being a Woo Foo Warrior to impress a girl. To prove his skills, he has to take out a huge steel beetle.

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.

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.

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

Yang's brain becomes controlled by a villain known as Mastermind.

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