Him has given the girls a set of nine riddles to solve in a time limit. The various tasks test both the girls' physical and mental faculties. However, if they fail to complete them all on time, Him promises them that "the Professor will pay".

When Ms. Keane gets sick she hires a substitute teacher named Mr.Green to run the class in her absence. Unfortunately because of his monstrous appearance the girls assume he's a bad guy and try to save their classmates from him.

Mojo is sentenced to do community service for Townsville and begins teaching English at the Learning Annex.

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

The girls rescue a baby from a monster and are forced to care for it when they can't find its mother.

The Professor gets a new job, and the Utonium family moves to the Town Of Citysville. The Professor loves it, but the girls don't and are having a hard time adjusting to the new changes.

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.

A new villain steals valuable information from smart people in Townsville, so the Powerpuff Girls use the Mayor as his new target.

When the Girls hear the Professor trying to make something out of sugar, spice, and everything nice, they are sure he's trying to create new little girls.

A dumb crook hides a jewel in a cereal box. He searches all 3000 of them and when he's down to his last one the Professor buys it for the girls'.

When the Professor realizes that all his successful experiments are actually just accidents, he sets out to do something brilliant on purpose!

On a very hot and humid day Blossom discovers that she has ice powers.

After being arrested by a truant officer, the Gang Green Gang goes back to kindergarten and invades Pokey Oaks with tricks up their sleeves.

Nerd boy Lenny Baxter has every single Powerpuff merchandise on the entire planet and now he decides to collect The Powerpuff Girls.

The Professor throws the girls a birthday party, but when every villain finds out about it they try to ruin the party.

The citizens of Townsville take advantage of the Powerpuff Girls and the girls' go out on a strike.

Alien broccoloids infect the broccoli of Townsville and now it's up to all the kids in Townsville(including the Powerpuff Girls) to defeat them.

Buttercup loves to fight monsters but taking a bath gets in the way, so to continue fighting monsters she doesn't take a bath for 3 days.

Putting everyone in the world asleep can be a hard job so to make it easier Sandman puts the world to sleep forever.

Bubbles gets hit on the head by Mojo and gets amnesia.

Blossom steals a set of $2000 golf clubs for Father's Day for the Professor.

The Professor creates a pet for the girls' that can only be fed once!

A new kid at Pokey Oaks named Mike Believe is very unpopular with his classmates, so he creates an imaginary friend for himself who turns out to be an imaginary fiend.

Harry Pitt has the cooties and everyone in Pokey Oaks are avoiding him including the Powerpuff Girls.

A rainy day in Townsville becomes boring for the citizens of Townsville, so the Powerpuff Girls make the best out of a terrible rainy day.