The Mane Event: After Bubbles and Buttercup mistakenly give Blossom a botched haircut, she gets made fun of by everybody in the city. When an all-seeing monster appears, Blossom now has to help her sisters stop this monster and deal with the humiliation.

City of Frownsville: A miserable scientist named Lou Gubrious uses his machine to switch everyone’s happiness with his crying depression, making him the happiest man in Townsville. The girls has to find a way to make to make the people of Townsville happy again before they drown in their sorrow.

Hot Air Buffoon: The Mayor tries to save Townsville after being criticized by the nighttime cleaning staff woman that he just sits there and do nothing. He then causes destruction which the girls have to quickly find him before he inadvertently destroys the city in a hot air balloon.

Simian Says: Mojo takes over as the narrator. He commands the girls to do what he wants until it’s revealed in the end what happened to the narrator.

Mizzen in Action: Pirate Crack McCraigen (an anagram of series creator Craig McCracken) and his crew mistake Chemical X for treasure when they are mysteriously transported to the present, leaving the girls to fight these powered pirates to get the Professor back and the pirates back into the past.

Reeking Havoc: Realizing the need for the Professor to win the chili contest, the girls each unknowingly add Chemical X to give it an extra kick. After the Professor wins the contest and having everyone tasting the chili, they all let out the gas which causes a gas monster to come out of the sewers […]

Mr. Mojo’s Rising: When Mojo Jojo kidnaps the Professor, it’s a blast from the past—a blast of Chemical X, that is. After Mojo Jojo reveals he was once the Professor’s “beloved” assistant, the Professor is coerced into giving Mojo the same superpowers as the Girls. However, once empowered, the true evolution of this super-villain chimp […]

Divide and Conquer: After stealing a tangerine and watching it split up into different pieces, the Amoeba Boys learn how to multiply and make duplicates of themselves. Meanwhile, at Pokey Oaks, Ms. Keane teaches the kids math and the Powerpuff Girls must use math to stop the Amoeba Boys.