Professor Utonium and his son Ken are studying the strange Chemical X. When a mochi cake falls into the formula, it changes into Chemical Z. Ken fires a ray of Chemical Z at a glacier in Tokyo Bay, however that causes strange lights to scatter, some of them aim at three normal girls, Momoko, Miyako, and Kaoru. This gives them the power to transform into superheroes, the Powerpuff Girls Z!
The best episode of "Powerpuff Girls Z" season 1 is "Arrival of the Girls! / Birth of the Girls!", rated 6.4/10 from 34 user votes. It was directed by Iku Ishiguro and written by Yoshio Urasawa. "Arrival of the Girls! / Birth of the Girls!" aired on 7/1/2006 and is rated 0.5 point(s) higher than the second highest rated, "Relaxing Bubbles Part 1 / Relaxing Bubbles Part 2".
The Powerpuff Girls fight Mojo Jojo after he kidnaps kindergarten students in a cage and steal their candy.
Director: Iku Ishiguro
Writer: Yoshio Urasawa
Professor Utonium, his son Ken, Blossom, the Mayor, and Ms. Bellum and Poochi find Bubbles jumping cheerfully as she is attacked by Mojo Jojo and takes them in for research.
Director: Iku Ishiguro
Writer: Saki Hasemi
Buttercup reluctantly joins the group. The girls are put into the same class to make them get along and they stop Mojo from hogging all the food in a restaurant.
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The girls take turns being a mother figure to Ken, while Mojo plans to turn everyone into monkeys
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Climbing the Walls: Professor Utonium, Mr. Mayor, Ms. Bellum and the girls inspect the tall building which will become Mayor's Tower when Mojo tries to claim it to.
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Fuzzy Lumpkins: Fuzzy Lumpkins keeps driving the girls and friends away while they try to enjoy a trip to the woods. Princess Morbucks: Classmate Princess Morbucks (Himeko) is hit by the black Z-Rays and plots to outshine the Powerpuff Girls.
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Blossom is given the task of being the bodyguard of her favorite TV hero, Johnny Cosmo when Mojo threatens him. The Amoeba Boys (now including a lady) attempt to become villains with little success.
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A local shop owner and the Girl's friend, Annie is hit by black Z-rays turning her into the monster Sedusa! She attempts to glamour herself to win the heart of her friend Jason.
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Buttercup trains a young kid named Justin to become a better soccer player. After falling in love with Ms. Bellum, Fuzzy decides to take her back to the woods.
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The arrogant hairdresser Gilbert is hit by black Z-Rays and uses his power to hypnotize the customers to accept his eccentric hairstyle.
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Believing Blossom, Bubbles and Buttercup are planning to show off, Princess follows them to unearth their plan. Mojo decides to steal all the cakes in the city.
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Bubbles reminisces about Cody a boy she met when she was six years old, who promised to meet her again someday.
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Mojo decides to teach the Amoeba Boys how to become villains. A camera thrown away by the Mayor takes out his revenge by turning New Townsville black and white.
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The Gangreen Gang attempt to capture Buttercup during a big soccer match between the New Townsville Titans and the Cityville Colts.
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Mojo attacks a fashion show that Blossom and Bubbles are participating in. After a customer puts too much vinegar on the soup, black Z-Rays turns the soup into Noodlehead and forces people to eat noodles 'the right way', but the Powerpuff Girls Z are too full to stop him.
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The Powerpuff Girls find out why Princess Morbucks is showing off every night, costing them their sleep.
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Ernie, the school newspaper's photographer, struggles to take a decent picture of the Powerpuff Girls. The Mayor's petty argument with his brother, the Principal, causes an electric wave monster to be created.
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Mojo Jojo, Fuzzy Lumpkins, and the Gangreen Gang join forces to defeat the Powerpuff Girls.
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A piano hit by black Z-Rays terrorizes the town after being played poorly by Mojo. In order to not let their grades slip, Ms. Keane shoots down every excuse the girls have to fight Mojo.
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Mojo Jojo uses the Powerpuff Girls' DNA, his own DNA, and Chemical Z to create the Rowdyruff Boys.
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A boy's rubber duck is lost and hit by a black Z-Ray, and Poochi decides to take care of it. A group of vegetables take all the vegetables into space after no one eats them.
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A mysterious being sends a mummy to collect "white energy" from the Powerpuff Girls to escape from its prison.
Director: Yasunori Goto
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A Comedy of Terrors: A comedian tries to win the heart of a girl whose father doesn't appreciate comedy. Beetle Battle: With the help of Buttercup, Ken trains his pet beetle to defeat his rival in a beetle fighting tournament.
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In order to introduce him to new friends, Professor Utonium sends his son back to school.
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The Write and the Wrong Way: Miyako's pen and eraser are infected by Him's black spores. The pen likes to cause mischief, but the eraser tries to stop him. Flower Power: Him's spores infect a lonely flower, who begins to cover the town in flora.
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