Pokemon Season 21 Episode 4 A Masked Warning!

Ash, Pikachu, and their friends have arrived in the Fula City, where they plan to participate in a local festival and battle tournament. As they explore the city, they notice a number of people wearing strange masks that seem to be warning them away from certain areas.

Curious, Ash and his friends begin investigating the mysterious masks, and soon stumble upon a secret underground society that is using the masks to intimidate and control the people of Fula City. With the help of their Pokemon, Ash and the gang embark on a mission to stop the masked villains and restore peace to the city.

As they navigate the treacherous underground maze and battle powerful foes, Ash and his friends discover the shocking truth behind the masked society and the true nature of their leader's intentions. Will they be able to stop the villains in time and save Fula City from destruction? Find out in this exciting episode of Pokemon season 21!