All That Glitters is Not Golden! - S9.E26

Ash and May spot an amazing golden Sudowoodo at the edge of a lake, but it knocks Ash's Poké Ball away when he tries to catch it. Brock and the others don't believe it, until they reach the next town and find a saloon full of locals looking for the golden Sudowoodo. They also meet Keenan, the golden Sudowoodo's Trainer, who can't explain why it's golden or why it ran away from him. Our heroes happily decide to help Keenan find Sudowoodo, yet Keenan doesn't seem to want the help.