BW054: Ash Versus the Champion!

Episode Plot
Ash and co. meet with Trip again, who has five badges over Ash's four. Later they meet the Unova Champion Alder, the man who inspired Trip to be a Pokémon trainer, only to see that now, he's a goofy guy. He challenges Ash to a battle and Ash gladly accepts. Who will win this battle, and what is going on in Alder's head?

Trivia

 * Though Ash has befriended old Champions like Johto's Lance, Hoenn's Steven Stone/Wallace and Sinnoh's Cynthia, this is the first time Ash battled a champ.