Before the Creation Trio

One night...
Ash, Brock and Dawn had the same dream. In the dream Azelf, Mesprit and Uxie appeared to them, physically this time.
"We finally meet." Ash said.
"Wow, you three look so cute." Dawn added.
"I do wonder why you appeared to us." Brock inquired.
The lake guardians started to talk, worried.
"What is it?" Ash asked.
"If you have something to say, please tell us." Dawn begged.
Suddenly the area turned a nasty blackish-red color and a dark red shadow appeared to grab Azelf, Uxie and Mesprit. The lake guardians tried to run away from the shadow but it was no use and Ash, Brock and Dawn couldn't do anything about it. 
Just then the dreams ended and Ash, Brock and Dawn woke up with a fright.
"What's going on?" Tomo asked. He was woken up by the others.
"What a dream." Dawn said. "I saw Mesprit and the other lake guardians."
"I did too." Brock added. "And I saw a shadow."
"We all had the same dream." Ash continued. "And from the looks of that shadow capturing them that must mean they're in danger and the dream was a warning."
The others believed his words. 
His words turned out to be accurate as Hunter J and her crew appeared at Lake Valor on their ship. They were going after Azelf first.
"Prepare to drop the Galactic bomb." Hunter J said.
She had a big bomb attached to her ship; this bomb had been constructed by Team Galactic and they gave it to J for the purpose of capturing the lake guardians. 
Gary, who had been staying at Lake Valor for a while, noticed J's ship and contacted Prof. Rowan to tell him about J. Prof. Rowan saw J's ship on a screen in his lab and believed J was after the lake guardians. He ordered his assistants to contact Yuzo and Carolina, who were guarding Lake Acuity and Lake Verity, at once. They all needed to be prepared for the worst.
Back at Lake Valor
Gary got ready to fight with his Pokemon Umbreon, Electivire and Blastoise. But then a Dark Pulse attack struck Electivire. Electivire was badly injured by the attack. It came from Toxicroak; Saturn appeared along with his grunts.
"You're members of Team Galactic!" Gary shouted.
He recognized Saturn immediately because of the photos he had of Team Galactic. 
"Hydro Pump." Gary ordered.
Toxicroak dodged the attack and punched Blastoise really hard with Poison Jab. The attack poisoned Blastoise.
"Alright Umbreon, Psychic." Gary said.
"Toxicroak, X-Scissor." Saturn said.
Toxicroak charged at Umbreon with glowing hands and Umbreon was badly injured.
This was bad for Gary because Toxicroak was really strong.
Since Saturn kept Gary busy, J had the opportunity to drop the Galactic bomb into Lake Valor. The bomb exploded in the lake and Azelf was affected by the bomb. 
Floaroma Town
Inside Floaroma Town's Pokemon Center, Ash sensed Azelf's pain and it gave him a horrible headache; this was because of Ash's connection to Azelf. 
"Ash, what's wrong?" Dawn asked, worried.
"Azelf's in trouble." He answered.
"Then our dream's coming true." Brock added. "The lake guardians are in danger." 
"Oh no." Dawn gasped.
Back at Lake Valor
The effects of the bomb caused a whirlpool to appear in the lake and a orb of light appeared at the bottom.
"What is happening?" Gary asked.
"Allow me to explain." Saturn smirked. "The Galactic Bomb was constructed from the meteorites we took from Veilstone City and it's powerful enough to open up a hole in space. You see, the lake Pokemon don't actually live in a lake. They observe our world from another dimension that resembles a lake."
Right now the orb of light made it's way out of the lake.
Back at the Pokemon Center
The gang spoke to Prof. Rowan on the phone.
"Ash felt Azelf's pain." They told him.
"Team Galactic and Hunter J are at Lake Valor." Prof. Rowan explained.
He showed them a picture of J on the screen. She rode her Salamence towards the light.
"So Team Galactic joined forces with J." Brock said.
"And they're after Azelf." Dawn added.
"I knew something like this would happen." Ash said.
Whirlpools formed at Lake Verity and Lake Acuity and they lit up. That was a indication Uxie and Mesprit sensed something happening at Lake Valor. Yuzo and Carolina immediately contacted Prof. Rowan and filled him in.
At Lake Valor J headed towards the light. 
"Electivire, Thunder!" Gary ordered.
Toxicroak stopped it with Poison Jab.
"Don't get in our way." Saturn demanded.
The Galactic grunts released a lot of Golbat to help J. 
"Fire Hyper Beam at the light." She ordered.
The light died down and Azelf appeared.
"It's Azelf." Ash said. 
He and the others watched everything on the phone screen. Azelf noticed the swarm of Golbat and attacked with Extrasensory. 
"Supersonic." Saturn ordered.
Azelf dodged Supersonic and knocked them out with Extrasensory. J was now in the open to capture Azelf with her bracelet. Azelf used Extrasensory on her, but the beam from her bracelet turned Azelf into a statue. Ash felt pain after Azelf's capture. J smirked upon her success.
At Team Galactic's headquarters, Cyrus observed everything from a computer screen.
"It's been said for centuries that the legendary Pokemon were created at the beginning of the universe." He said. "Those three lake guardians work in harmony to protect Sinnoh. And the legend says that if one of them falls, all three would appear and unite to restore balance."
Cyrus' words were true because Mesprit and Uxie emerged from their lakes after sensing Azelf was in danger. Then they teleported directly to Lake Valor. Brock and Dawn immediately felt their presence. The grunts at the lake told Cyrus what had happened.
Ash, Brock and Dawn were extremely concerned about what was going on and decided to immediately save the lake guardians.
"I understand how you feel." Prof. Rowan said. "But I fear it's too late."
"No professor." Ash argued. "The lake guardians contacted us because they need our help."
"That's right." Dawn said. "They're pleading with us to save them all."
"We have to go." Brock added.
Before Prof. Rowan could stop them, the gang quickly ran out of the Pokemon Center. Once they were out the door Cynthia drove up in a jeep. She was alerted about the situation by her grandmother and knew they would want to help the lake guardians.
Back at Lake Valor
Azelf was in a glass case that floated over to Saturn. Gary wanted to help Azelf, but his efforts were stopped by Toxicroak and his Pokemon were too injured to do anything. At that moment Uxie and Mesprit appeared to help Azelf. They saw Azelf in the container and were just about to attack Saturn when they were stopped by a Flamethrower and Shadow Ball. The attacks came from Purugly and Skuntank; Jupiter and Mars made their presence known.
"Cyrus was right when he said that when one falls the others come out." Mars said.
"That's a big mistake on their part." Jupiter said.
The Golbat used Supersonic on them, but they floated out of the way. J then cornered them and got ready to fire her small cannon. Just then Uxie and Mesprit released Future Sight and the attack disappeared into thin air. As the attack did nothing J thought they were just wasting their time and fired two beams from her bracelet. Mesprit was turned into a statue. This made Uxie angry and she attacked J with Extrasensory. J was hit and her glasses were shattered, but she still turned Uxie into a statue with her bracelet. J smirked at her success.
Right now Dawn and Brock held their chest in pain because Uxie and Mesprit had been captured.
"Oh no, they got Mesprit." Dawn said.
"And Uxie too." Brock added.
"This is bad." Ash said.
He feared the worst.
"If you want to save those Pokemon, you have to stop Team Galactic." Cynthia said. "You are familiar with Looker right?"
"Yes, we met him before." Tomo answered.
"He's doing a investigation on Mt. Coronet. We're going there to meet him." Cynthia said.
"I'll head there from the air." Dawn and Cynthia were confused by his statement.
"What is he doing?" Dawn asked the others.
"Something awesome." Tomo smirked.
Within seconds, Ash was in his gigantic dragon form.
Dawn was frozen in shock. She had no idea he could turn into a enormous fire-breathing creature.
"Time to put the pedal to the metal." Cynthia said.
She pressed down on the accelerator and quickly drove off. 
Back at Lake Valor
J handed Uxie and Mesprit to Team Galactic. Gary and his Pokemon were surrounded by the grunts, so they're was nothing they could do.
"Excellent work, Hunter J." Mars smiled.
"We aren't going to let the lake trio reject us. We are the chosen ones, after all." Jupiter said.
She was still convinced she, Mars and Saturn were chosen to synchronize with the lake trio.
"Here's your payment as agreed." Saturn said.
J got back on her Salamence and entered her ship. Since her mission was complete it was time for her to return to base. But then Future Sight kicked in and hit the ship dead on. It seemed the lake Pokemon used Future Sight just in case and their plan worked. Gary and Team Galactic looked on in horror as her ship began to fall. Saturn thought the power of the lake guardians was frightening. 
"Secure the ship." J ordered.
The ship was so badly damaged, they weren't able to control it. J had underestimated Mesprit and Uxie and now she was in big trouble. The ship fell into the whirlpool in the lake and she and her crew had no opportunity to escape. Water filled up in the ship and it sank further down into the lake before exploding. By now Team Galactic took their helicopter to Mt. Coronet. Gary was devastated with his failure to protect the lake guardians.
At Mt. Coronet
Looker was hiding behind some rocks to spy on Team Galactic. Just then he felt a tap on his right shoulder. He turned and saw Jessie, James and Meowth.
"Who are you?" Looker asked.
"We're Jessie and James sir." Jessie introduced them.
"We're here to help you deal with Team Galactic as we have a score to settle." James said.
2 days earlier
Jessie, James and Meowth found out from the news about Team Galactic and the investigations on them. The trio remembered that they hated Team Galactic and decided to get revenge. 
"We encountered them a while back." The trio explained.
"Will you let us help deal with them?" They asked.
Their bosses were hesitant at first, but after hearing how dangerous Team Galactic was the trio was given permission to do so as long as they quickly returned. Jessie and James flew to Sinnoh and met up with Meowth at the airport there. Then they flew their old balloon to Mt. Coronet; it had been kept at a Pokemon Center and they found out Team Galactic was at Mt. Coronet, so they reckoned they would be there. 
"We know first hand how tricky Team Galactic is, so that's why you will need some help." Meowth said.
Looker was shocked to see a talking Meowth, but this wasn't a good time to ask questions.
"Team Galactic is up to something here on Mt. Coronet and I intend to stop them after all the times they slipped away from me." Looker said.
"Say no more sir." James said. "We've dealt with jerks like them before, so we know exactly how to handle it."
Right now Cynthia, Dawn, Tomo and Brock were talking with Prof. Rowan through the jeep.
"Gary's alright, but Team Galactic managed to get away with the lake guardians." He told them. "As for Hunter J, her ship sank into Lake Valor."
"Do you have any idea where Team Galactic is, professor?" Dawn asked.
"No, but I'll pass any information on when it becomes available." Prof. Rowan answered. "Be careful."
"We will." Cynthia promised.
"I don't like this." Tomo said.
"At this moment Team Galactic has the lake trio and both treasures in their possession." Cynthia added. "Which means they're fully prepared to call forth Dialga and Palkia."
"That's not gonna happen." Ash snorted.
He had a secret weapon in his backpack. He kept the Griseous Orb in there because he was expecting they would need it while the lake guardians were in trouble.
"Team Galactic won't be expecting us to call Giratina for help." The others agreed as did Cynthia.
At Team Galactic Headquarters
The lake guardians were placed in glass containers and Team Galactic prepared to use them in their plan. Charon used a computer to scan the legendary Pokemon and the shards of the red chain were placed on the lake Pokemon. Azelf, Uxie and Mesprit were no longer statues and the red chain started to control them.
Ash, Dawn and Brock grabbed their chests in pain because the legendary Pokemon were being controlled.
"What's wrong?" A worried Tomo asked.
Ash gritted his fangs.
"It's so intense." Dawn said.
"Much stronger than before." Brock added.
Suddenly they disappeared along with Pikachu and Piplup, leaving Cynthia, Tomo and Growlithe in the jeep. Cynthia and Tomo were shocked and she quickly stopped the jeep.
"What happened?!" Tomo gasped.
"They have been summoned." Cynthia remarked.
That meant the lake guardians were calling for Ash, Dawn and Brock's help and used their powers to teleport them to their location.
At Team Galactic headquarters
The lake guardians were now under their control because of the shards. Charon was really excited after finding out what the shards can do. Suddenly Ash, Dawn and Brock were teleported into the headquarters. Team Galactic was surprised to see them there. Ash, Dawn and Brock immediately noticed the lake guardians in the containers. 
"They must have brought us here." Brock said.
"What have you done Team Galactic?!" Ash shouted.
Suddenly Brock's Croagunk came out of it's Poke Ball; it wanted to settle the score with Saturn's Toxicroak. Saturn acknowledged it's feelings and released Toxicroak. Mars and Jupiter released Purugly and Skuntank. Pikachu and Piplup got ready for a battle. 
Before they could commence a battle, Cyrus stopped them.
"No fighting is allowed." He said.
Ash glared at Cyrus as soon as he saw him.
"I knew there was something I disliked about you!" He shouted. "You're Team Galactic's boss, aren't you?"
"What?!" Dawn gasped.
She couldn't believe it and neither could Brock.
Meanwhile
Looker and the trio were looking at Team Galactic grunts who were standing guard over the entrance to the Spear Pillar.
"No doubt Team Galactic is going to do something big here." James said.
"We better don our disguises James." Jessie said.
In the blink of a eye, Jessie and James disguised themselves as Galactic grunts with Meowth acting like a normal Meowth. Looker was surprised.
"We've assumed lots of disguises so we know what to do in this situation." James informed him.
"You three aren't the only ones who happen to be a master of disguise." Looker said.
He was also going to disguise himself as a Galactic grunt.
Back at headquarters
"No fighting." Cyrus reprimanded Saturn, Mars and Jupiter.
Cyrus wasn't a fan of fighting because he didn't like it when emotions got the better of people. 
"I created Team Galactic and it's headquarters with the goal of destroying the world and creating a new one." The gang was already aware of this.
"You're insane Cyrus!" Ash shouted.
"Lose your rage. It only destroys things." Cyrus said.
This only made him angrier.
"You think this is rage. You haven't seen anything yet." Ash growled. "You kept everyone in the dark about your true nature, including Cynthia. Team Galactic has been terrorizing Sinnoh and it's inhabitants as well as stealing things that don't belong to you."
"You even took Mesprit, Azelf and Uxie from their lakes by force!" Dawn shouted. "Release them at once and return them to their lakes."
"I'm afraid that won't happen." Cyrus said. "They're necessary for bringing forth a new world. You children seem to be important to the legendary Pokemon as they brought you here, so I'm afraid you'll remain here until our task is complete."
The Galactic grunts surrounded the gang, ready to capture them.
"You're not getting away with this. We won't allow it." Ash angrily said.
"Pikachu, Thunderbolt." He ordered.
"Piplup, Bubble Beam." Dawn ordered.
The attacks destroyed the containers the lake guardians were in. Croagunk charged forward to fight Toxicroak.
The war between the gang and Team Galactic had now begun.