The sun shone brightly over the beautiful park in Ecoland. Colorful trees rustled in the breeze 🎵, and children laughed and played 🎵 on the playgrounds.

Sophie, Jake, Mia, and Finn—best friends known as the Eco-Kids—were swinging on the swings when Mia suddenly stopped and pointed.

“Look! What’s that?” she asked, surprised.

Scattered on the grass were colorful wrappers, empty bottles, and crumpled cans. Instead of lush green lawns, the park looked like a landfill 🎵!

“Oh no!” Finn exclaimed, bouncing with energy. “It was so clean yesterday!”

Sophie narrowed her eyes like a detective and pulled out her trusty blue notebook.

“This is very strange,” she said, jotting down observations. “Someone must have littered the park overnight.”

The kids spotted Mr. Gardener, the park caretaker, looking sadly at the mess.

“Good morning, Mr. Gardener!” the kids called out together.

“Good morning, my dears,” Mr. Gardener replied with a sigh. “Have you seen what’s happened to our park? I’m worried the animals might get hurt by this trash or eat something harmful.”

“Do you know who did this?” Jake asked, picking up an empty bottle 🎵.

Mr. Gardener scratched his chin.

“Hmm… Last night, I saw someone who looked like Litterbug. That pesky troublemaker doesn’t care about nature.”

“Litterbug!” the kids groaned.

Suddenly, they heard a cheerful tune 🎵. Bip-bip-bip! A recycling truck with a smiling face rolled down the park path.

“It’s Max the Mighty Recycler!” Finn shouted gleefully.

Max wasn’t just any recycling truck. Powered by special Eco-Energy, he could harness the elements of nature—earth, water, air, and fire (the kind that warms, not burns)—to help the planet. His “belly” glowed with a soft green light as he stopped 🎵 beside the kids.

“Hey, Eco-Kids!” Max said in his warm, friendly voice. “What’s going on? My eco-radar detected a ton of trash in this area.”

“Max, someone littered the whole park!” Mia explained. “Mr. Gardener thinks it might’ve been Litterbug.”

Max scanned the surroundings.

“Hmm, this looks serious. We need to investigate. Will you help me?”

“Absolutely!” the kids replied in unison.

The Eco-Kids and Max began searching the park 🎵. Sophie recorded the types of trash they found in her notebook.