Phineas and The AllStars Unite!

Disclaimer: I do not own Phineas and Ferb, Dexter's Laboratory and the Powerpuff Girls.

Chapter 1 Arrival of New Friends

In they city of Danville in the Tri-State Area, Phineas, Ferb, Candace and their friends were busy making preparations for Isabella's birthday.

"Ok gang we need to bring all the decorations for Isabella's party." explained Phineas.

Candace, who normally wanted to bust her brothers, decided to put aside her busting; she wanted to help out since she was a good friend of Isabella and was aware that she had a crush on Phineas.

"I have a fantastic idea, our band PFT and Jeremy's band can join together and sing a special song for Isabella."

Her best friend Stacy agreed.

"Great idea Stacy and I can be backup singers."

"I always wanted to sing, so what we do next?" Jenny asked.

"Once we have finished, one of us can bring Isabella around and then we shout 'Surprise!'" replied Phineas.

"Cool," said Jeremy. "I can bring her round if you want." Everyone agreed.

A few hours later, Isabella was walking along the street, wishing she would have the best birthday ever. "I can't wait to hang out with my friends, especially Phineas." She thought. Then she heard Jeremy calling her, "Hey Isabella, ready to get going?"

"Yeah, I'm coming." she replied. Then suddenly from out of nowhere, a dark figure grabbed Isabella.

"Help, help!" she screamed.

"Oh no, Isabella!" Jeremy exclaimed as he started to run towards them. When he stopped, the dark figure disappeared and took Isabella with him. "I've got to tell the others." He thought.

"What?! Isabella's been kidnapped?" gasped Candace.

"That's right guys, and I just ran towards them and then they were gone." Jeremy replied.

"This is terrible!" cried Phineas. "She was my best friend and now she's gone. I wish we could save her." Then the group heard a voice.

"We can help you save her."

Then in a bright flash of light, a group of heroes appeared before them. The tall, rectangular faced man in a white lab coat and black trousers and shoes stepped forward.

"Greetings, we understand you need our help." He said.

"How do you know that?" asked Ferb.

"When someone needs our help, we jump into action." Replied the small red haired girl with a red bow. "I'm Blossom, and these are my sisters, Bubbles and Buttercup. This is our dad Professor Utonium. And these are our friends, Dexter: Boy Genius and his older self, Action Dexter."

"It is an honour to meet you all, what are your names?" asked Action Dexter.

"I'm Phineas and this is my brother Ferb, my sister Candace, and our friends Jeremy, Stacy, Coltrane, Jenny, Buford, Baljeet and the Fireside Girls." Replied Phineas.

Stacy added, "It is fantastic to meet you guys too."

"Where are you guys from?" asked Coltrane.

"We are from the city of Townsville," explained Dexter. "We are superheroes, we fight crime and the forces of evil."

"I know now," said Jenny. "You are the Powerpuff Girls and the AllStars. You are amazing, and we heard you are dedicating your lives to protect the world, so that we can live together in peace."

"Ah, so all of you share our destinies," added Action Dexter as he took hold of Jenny's hand, "We heard you guys do amazing things too."

"We sure do big guy," said Buford. "We travelled around the world in just one day."

"Travelled twice through time." Added Baljeet.

"Became a one hit wonder." Added Adyson Sweetwater.

"And built a rollercoaster through down town, and the second time we did as a musical." Finished Candace.

"That is awesome!" exclaimed Buttercup. "I wish we did do amazing things like that as well as crime fighting."

"Well now's your chance, we were planning a surprise birthday party for Isabella at Danville Park, and then she was kidnapped by a mysterious figure when Jeremy went round to pick her up from her house." Explained Stacy.

"You can tell us all about it while we help you take all the party decorations to Danville Park." Said Bubbles kindly and off they went.

Stay tuned for Chapter 2 – AllStars To The Rescue Part 1