Forest

The gang walked through a big forest.
"This forest is so beautiful." Misty said. "It's very green and nothing's wrong at all."
"Uh actually, there is." Brock pointed to some trees. Some of the trees in the forest looked dead.
"What happened to these trees?" Ash asked. 
"I don't know." Brock replied. "I mean they don't look burned or diseased and it's not autumn yet."
Just then Tomo noticed something.
"Hey look at that." He said, pointing at a big tree. The tree had some big, dark blue beetles on it and they were sucking tree sap. There were also some Butterfree beside them. Misty started to freak out because they're bug type Pokemon.
"Those are Heracross." Ash said, looking them up on the Pokedex. 
"Heracross, the Single Horn Pokemon. This powerful Pokemon thrusts it's powerful horn under it's enemies bellies then lifts and throws them."
"Do you think they're the ones that caused the trees to die?" Tomo asked. 
"No, I don't think the Heracross and Butterfree are responsible." Ash said. "I mean it's natural for bug type Pokemon to eat tree sap and the bug type Pokemon help the trees grow." 
"You're right Ash." Brock said. "I think something is going on in this forest."
"Something is going on in this forest." A voice called out. 
The voice belonged to a middle-aged man with a beard in a ranger outfit. 
"I'm Woodruff." The man introduced himself. "And I'm a forest ranger."
The gang introduced themselves to Woodruff. 
"So what is going on in this forest Woodruff?" Brock asked. 
"The bug type Pokemon Pinsir is what's going on." Woodruff said. "You see this forest belongs to Heracross and Butterfree and Pinsir have their own forest too. But recently something has been driving the Pinsir from their forest home to this forest. Pinsir eat tree sap too and they have been sucking sap from these trees. If I don't stop the Pinsir and return them to their forest, well I fear this forest will end up being destroyed."
The gang decided that they would do something about it before things got worse. Even Misty agreed to help; despite the fact she disliked bug type Pokemon, she still didn't want to see a forest destroyed. Woodruff led them to the forest where the Pinsir lived and to their surprise a Heracross followed them. 
"What does that Heracross want?" Misty asked. 
"I don't know." Brock said. "But let's keep going."
They came to a rope bridge leading across a gorge that would take them to the Pinsir forest, but it was broken.
"That's strange." Woodruff said. "This rope bridge was fine when I was here yesterday. Hmm I fear that who or whatever caused the Pinsir to leave their forest doesn't want us to enter the Pinsir's forest." 
Just then the Heracross that had been following the group pushed a tree that was close to the rope bridge and the tree landed across the gorge. The group used the tree to get across safe and sound. 
When they reached the Pinsir's territory, they suddenly noticed something in a tree. It was a Pinsir, but a lot bigger than a normal Pinsir. 
"Do Pinsir grow that big?" Misty asked, a little scared.
"No they don't." Woodruff said. "Besides that Pinsir isn't even real. That's a Pinsir robot and it is sucking out the tree sap from that tree." 
"Who would construct that though?" Ash asked.
Suddenly a man emerged from the tree laughing.
"It was clever of me to build this machine." He said to himself. "With all this sap I'm collecting, I'll be rich after selling it."
Woodruff stepped forward, enraged.
"You will be in jail too!" He shouted. "How dare you use nature for selfish motivations."
"That's right!" Ash yelled. "Because of you the balance of nature is in trouble."
"So what?" The man smirked. "As long as this stuff makes me money, nothing else matters."
The man threw five Poke Balls and five Beedrill came out of them.
"Attack them." He commanded. 
Ash and Tomo had Mareep and Growlithe attack them with Thunder Shock and Flamethrower. Then Misty ordered her Gloom to use Solar Beam on the Pinsir robot. The man tried to get away with all the sap he collected but was stopped by the wild Pinsir. Woodruff tied the man up with rope. 
"You're under arrest for sabotaging a forest." He said. 
So in the end the man had been arrested and sent to jail. The Pinsir got their forest back and the Heracross and Butterfree could finally live peacefully in their forest again. 
"I can't thank you kids enough." Woodruff told the gang. "Thanks to your help the forest is safe again. And hopefully it will stay that way."
"Me too." Brock said.
Suddenly the Heracross that had been following the group stepped forward.
"Hey, it's the same Heracross." Brock said. 
"What is it doing here?" Tomo asked.
Ash had a thought.
"Do you want to come with us Heracross?" He asked. Heracross nodded it's head to say yes.
"I thought so." Ash smiled. He threw a Poke Ball at Heracross and captured it. "All right I caught a Heracross!"
After capturing Heracross, the gang said goodbye to Woodruff and proceeded onward to Violet City.