The Secret of the Powerpuff Girls
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Episode No.


Original Airdate

July 1, 2006

Previous Episode

Powerpuff Girls to the Rescue

Matched with

Powerpuff Girls to the Rescue

Next Episode

Bouncing Bubbles

The Secret of the Powerpuff Girls (Here Come the Girlz! in the original Japanese version) is the second segment of the first episode of The Powerpuff Girls Z.

In this segment, Ken and Professor accidentally create a new chemical, which causes everything to change in New Townsville/Tokyo City, and the lives of three certain young girls who are residents of the city to change forever.

Episode SummaryEdit

The episode starts out with Professor Utonium and his son, Ken, working on a new chemical, and have some buns as a snack. Their dog robot, Peach, wants a bun, too. Ken gives Peach a bun, but while enjoying it, he accidentally throws the bun to the Chemical X which is stored next to it. This causes the chemical to change and the Professor examines it through the computer, and soon it is given a new name,Chemical Z.  

Soon after Chemical Z is formed, there is a weather calamity taking place all across the world, and in New Townsville, which is snowing (in the middle of summer). Ken tells his father they should use the Chemical Z to stop the calamity, and when Professor looks around, Ken and the Chemical Z disappeared and Ken then fires the Chemical Z at the iceberg which has appeared in the bay of the city. This causes several white and black rays (known as White Z Rays and Black Z Rays) to be released into New Townsville.

In the process, though, the White Z Rays hit three ordinary girls, Blossom, Bubbles, and Buttercup. Each are hit trying to protect a little kid from the rays, fearing for their safety, and then transform into Heroines. In addition, another Z Ray hit Peach/Poochi, causing him to have the ability to talk and no longer be a proper robot anymore.

The Black Z Rays also hit a number of animals and people across New Townsville. One of these is Mojo Jojo, an ordinary monkey living in the zoo, who became a monkey.

In the park, the kid who Blossom shielded from the Z Rays is seen admiring Blossom for the way she uses the yo-yo (she recieved the yo-yo as a weapon as part of her transformation because the kid who Blossom shielded had a yo-yo in her hand). While she doing that ability, Mojo Jojo releases all the animals from their cages at the zoo.

The people start running away and Blossom finds out that Mojo is behind it, after sensing that he has a Dark Aura, which means that he is a villain. They fight until Mojo loses, and after the fight finishes, Blossom returning the animals back to their cages, although the New Townsville/Tokyo City citizens are quite shocked at the outcome of how the city looks after the fight. The Mayor and his secretary, Miss. Bellum, then arrive to tell her that she should be more careful fighting crime and should try not to destroy the city. Despite this, though, the Mayor thanks her for saving the day, but she runs away immediately. Bubbles is very happy for her new dress unlike Buttercup, who is mad for it. She knows that Professor and Ken is watching them.

After that, Professor and Ken comment on the girls' power and how they were hit by the Z Rays, and subsequently leads them and Peach to leave the lab and immediately find information on the girls. This ends the episode.