In an unknown space outside of a world named Vestroia, home world to creatures known as Bakugan. Inside an orb was the shadow of a giant creature and the orb was emitting negative energy.
"Finally after absorbing all this power my strength is returning. Now to break free I must gather enough energy to break this seal and soon Vestroia and all dimensions will be mine."
…..
Another Dimension
In another dimension, which was the dimension of the digimon, Davis was just walking down the streets with Veemon. An entire year has passed since Davis and the others have defeated Malomyotismon. Davis even updated his look with a red jacket, blue shirt with a red X, red shoes, and brown shorts. They were just walking until they noticed that everything around them was slowing down.
"Davis what's going on?" Veemon said.
"I don't know." Davis said. Then he looked up and saw the sky flashing a mixture of colors. "What is that?" Then everything just returned to normal.
"That was freaky and we've seen freaky." Veemon said.
…
Another Dimension
In a dimension that was similar to the digimon dimension was a city known as Bakugan City and was late at night. A boy named Shun was brought down after a battle and his best friend and comrade Dan Kuso was running to his side.
"Shun are you alright?" Dan said.
"No, that guy up there. He took my ability to brawl." Shun said. Dan looked up and saw someone at the top of a building.
"That's right and now it's your turn Dan Kuso." Meanwhile they were being watched by six figures who were known as the legendary soldiers of Vestroia.
"This is bad." Clayf said.
"It's only a matter of time until darkness has covered all dimensions." Exedra said.
"But there may not be anything we can do." Frosch said.
"There must be something we can do. These humans saved our world and there's multiple times." Oberus said.
"I agree, but what would we do if the boy known as Dan loses his ability." Lars Lion said.
"Then we will find a new soldier. One with a fighting spirit as powerful as Dan's." Apollonir said and turned to a dragon like creature behind him. "This is where you come in."
"I can fight on my own."
"No. You need a partner and have an idea on who that can be." Apollonir said. "I have had a vision of a boy who saved not just one world, but two and he will be the one to help us."
…
Digimon Dimension
"I'm telling you Kari it was weird." Davis said as he met up with his friend Kari at the park.
"Now that you mention it I saw it too." Kari said.
"Hey you guys." They looked behind him and saw their other friends Ken, Yolei, Cody, and their digimon.
"Sorry are we interrupting a date?" Yolei said.
"No this isn't a date." Davis said with his face red. 'Oh man finally Kari and I are alone except for the digimon and they come in.' He thought.
"Hey did you guys see those strange lights?" Cody said.
"I'm still dizzy." Wormmon said.
"Yeah it was so weird." Kari said.
"By the way Kari what's with the new look? I thought you always wore pink?" Yolei said. Kari was wearing a yellow short sleeved shirt with white shorts, white shoes with stars on them and had a headband.
"I just thought I updated my look." Kari said.
"You don't have much room to talk since you're in all blue." Gatomon said. Yolei was wearing button blue blouse, blue shorts, brown shoes, with a blue bandana. Cody wore a dark brown shirt with lighter brown pants and orange shoes. Ken was wearing black shoes and pants with a purple strip going down, and his shirt had a black T on it with the rest purple.
"Let's not get off subject." Ken said.
"Yeah something weird is going on." Hawkmo said.
"Maybe we should call T.K." Cody said.
"I already tried." Davis said taking out his phone. "Something's blocking the signal." Then another light appeared before them and a small red and gold ball came through and landed in Davis' hand.
"What is that thing?" Veemon said.
"What's going on?" Davis said.
"That is called a Bakugan." They looked in the light and saw Apollonir.
"Who are you?" Ken said.
"My name is Apollonir. I am from another dimension known as Vestroia, home to creatures called Bakugan. That Bakugan there is named Pyrus Leonidas."
"Leonidas?" Davis said and the ball split open.
"Yeah that's my name. Apollonir do I really have to work with him?" Leonidas said.
"Yes you do." Apollonir said.
"Can you explain what's going on?" Davis said.
"It's very simple. In another dimension Bakugan and humans live together in a parallel Earth and it's in danger." Apollonir said. "Those who battle for that world are in danger. Bakugan are used to battle, sometimes for a game and there are times that a fate of a world depends on it. That time would be now."
"So what do you want from me?" Davis said.
"I feel that the ones called the Battle Brawlers aren't enough for their losing their ability to brawl." Apollonir said. "That's where you come in. Davis Motomiya I know of your power, I know of your strength. I believe you can help these people."
"Just tell us if you're in or not because I'm dying to battle." Leonidas said.
"If people are in danger and need help then I want to help them." Davis said.
"Yeah you can count us in." Veemon said.
"Us too." Cody said.
"That's right. We're in too." Armadillomon said.
"Absolutely not." Apollonir said. "I cannot ask you to step into this battle. I'm giving Davis Leonidas so that he can battle, but I have nothing else to give."
"Well if Davis is in then so are we." Kari said.
"Yeah we're all a team." Gatomon said.
"Hmm first can you turn around?" Leonidas said.
"Okay." Ken said as they all turned around.
"Now Apollonir and open the portal." Leonidas whispered.
"Wait I can't leave them." Davis said and Yolei heard him.
"I'm sorry Davis, but we can't wait any longer." Apollonir said and opened up the portal and Davis and Veemon got pulled in.
"Can we turn around yet?" Cody said.
"Hey you guys they're gone." Gatomon said and they all turned around.
"I don't believe it. Did Davis ditch us?" Kari said.
"Wait where's Yolei and Hawkmon?" Wormmon said. Inside the portal Davis and Veemon with Leonidas were traveling to the Bakugan dimension.
"Not cool. I can't believe you had me ditch my friends." Davis said.
"They would have slowed us down." Leonidas said.
"You got one heck of an attitude." Veemon said.
"Well I guess we'll have to put up with it." They turned around to see Hawkmon and Yolei.
"Yolei and Hawkmon?" They both said.
"What's the big idea sneaking off like that Davis?" Yolei said.
"No matter what anyone says we're a team and friends and we're going with you." Hawkmon said.
….
Bakugan Dimension
The portal opened up and the four of them arrived in Bakugan City.
"This is the Bakugan dimension? It doesn't look that much different from Earth." Veemon said.
"That Apollonir guy said that this was like our Earth being a parallel dimension." Yolei said.
"Yes and you must hurry." They turned back to the portal to see Apollonir.
"Apollonir what are we suppose to do?" Davis said.
"Find a boy named Dan Kuso and his Bakugan partner Pyrus Drago. You will find them miles down this street." Apollonir said. "You must hurry for I feel they are in danger."
"Okay thanks." Davis said and they started running down. Farther down the street Dan and Drago were having trouble defeating this opponent.
"I would have thought defeating the legendary Dan Kuso would be more of a challenge."
"Man this guy is good." Dan said.
"Yes and his Bakugan has powerful abilities and gate cards." Drago said.
"Now it's time for this to end." Their opponent said and a powerful red energy blast came in and blasted Drago and Drago returned to ball form.
"Life Gage 0."
"I can't believe I lost." Dan said.
"Now I will take my prize. You're brawling." Their opponent held up a card and glowed a bright dark color.
"Dan get out of there." Shun said, but it was too late. Energy came from Dan as he was in pain and the energy went into the card.
"Just like all the other brawlers you're brawling is gone. Now there is no one who can stand in our way."
"Hey hold it right there." They looked behind Dan and Shun and saw Davis and Yolei running up to them.
"Hey are one of you Dan?" Davis said.
"Yeah that's me. Haven't you heard of me?" Dan said.
"I'm not going to waste any more of my time." The enemy said. A square formed around him and spin causing him to disappear.
"Are you two okay?" Yolei said.
"Yeah who are you?" Shun said.
"I'm Veemon and this is Hawkmon."
"Please to meet you." Hawkmon said.
"What are those things?" Dan said acting scared.
"My name is Yolei Inoue."
"And I'm Davis Motomiya. It's okay you can trust us. We maybe from another dimension, but we were sent by Apollonir."
"Apollonir!" Dan and Drago said.
"It's a long story." Davis said.
(Davis): Once we meet Dan he introduces us to his friends who are apparently the original brawlers. They say that there's this evil team called the Destroyers that took away their ability to brawl. They could really use our help, but I don't even know how to brawl and Leonidas seems to have a problem with me. All next time, Bakugan Brawl!