The tough Buttercup's secret is revealed when her sister's learn that Buttercup's source of power is her little green blankie.

The Professor has to go out to an award's ceremony. He forgets to call the babysitter so he calls the Mayor who calls up Mojo Jojo to babysit.

Ms. Keane assigns pet duty since it's Friday. The Powerpuff Girls volunteer, but she chooses Mitch to take care of Twiggy, the class hamster.

Mojo Jojo turns the world into dogs again. The Powerpuff Girls come to the rescue wondering why Mojo does the same plan again. He tells them that he's found a fatal flaw in his old plan as he watches a video of his old plan.

Alien invaders invade Townsville, and the Powerpuff Girls go to Mojo for help.

When the Mayor gets a craving for toast he discovers his toaster is broken so he gives it to the Professor to fix, but he accidentally discovers the Professor's secret stash of chemical X which the Mayor uses as a hair growth formula.

Him is sick and tired of all the villains (including himself) failing in their never-ending plot to destroy the Powerpuff Girls, so he brings the Rowdyruff Boys back to life and stronger than ever.

While cleaning out their closet the Powerpuff Girls reminisce on all the adventures they've had over the years.

When and organization called Parents Against Powerpuffs tell the Girls that their super-heroics are becoming too imitable for children, the Girls must hold back on fighting crime.

When the Professor tries out his car, the Girls realize that this K.A.R.R. is taking the Professor away from them, both figuratively and literally.

Someone is defacing all the posters and statues of Townsville with make-up.

The Mayor keeps having the same dream over and over again, but he never sees the end. Now it's up Girls to go into the Mayor's head and solve this mystery.

When Mojo discovers that the Rowdyruff Boys have returned, he competes with Him to determine who's the more evil father.

Professor Utomium sends the Steamypuff Girls to save the western town of Townsville from Mojo the Kid.

When a TV show convinces kids to send in money to enter a special contest, Bubbles and the rest of the kids in the neighbor hood raise money to enter it.