Pokemon: Season 15, Episode 9

The Mighty Accelguard to the Rescue!

Ash and friends arrive in Driftveil City and immediately head to the gym. The gym is closed and so they decide to tour the city. They run into a motorcyclist Charles who acts like their tour guide. Soon they witness a crime taking place and the town's hero save them. Ash becomes a fan of the hero and wants to meet him.