Pokémon: The Legend of Team Harmony

Our heroes made their way to their next adventure... To a city filled with beauty and nature. Where people and Pokémon live and thrive together in harmony.
After hearing about the Pokémon festival, they decide to visit the city of hope and dreams. On the way there, they found themselves lost deep within the forest...
When a huge stampede corners our heroes, a mysterious figure races to their rescue. But who could it be?
What dangerous being is in charge of all the Pokémon's outbreaks?