"Major Competition" The Powerpuff Girl's place as crime fighters is taken when Major Man comes to town. The PPGs eventually figure out that Major Man is actually faking disasters just so he can "save the day."
In "Paste Makes Waste", one of the Pokey Oaks Kindergarten students has a bad habit of eating glue and Buttercup just can't resist picking on him for this. But when he accidentally eats some radioactive glue and turns into a giant glue monster, it's up to Buttercup to apologize for her behavior toward him to reverse the process. In "Ice Sore", during an intense heat wave, Blossom develops a new superpower, one that makes her sisters jealous, but her schoolmates popular with her: ice breath.
"Cat Man Do" The Girls save an innocent little Kitty from the clutches of an evil villain. Eventually they learn that Kitty is the true villain when he hypnotizes the Professor in an evil plot to take over the world.
In "Just Another Manic Mojo", Mojo Jojo's morning routine is disrupted by the Powerpuff Girls when their ball that they are playing with ends up in his lair. Mojo then uses this opportunity to try and eliminate his nemeses for good. In "Mime for a Change", Rainbow the Clown is accidentally transformed by bleach into an evil mime who can eliminate color and sound.
"Slave the Day" When the Girls save Big Billy's life, he feels forever in their debt, and becomes their slave. When he begins to get in the way of their crime fighting , they allow him to save their lives so he'll finally leave them alone.
"A Very Special Blossom" When the Professor wants an expensive gift for Father's Day, Blossom makes the mistake of stealing what she can't afford (Pro-Excellence golf clubs) instead of giving from the heart.