Episode 154
Ash finally arrives at the Battle Dome ready for his next Frontier Battle. After a little press conference Ash finally begins his battle against the Frontier Brain, Tucker. The battle will be a double battle, which Tucker uses Swampert and Arcanine for. Ash chooses Swellow and Corphish and the battle begins. The battle quickly goes in Tucker's favor as his Pokémon are very skilled at combinations together.
Aired 24/11/2005EP 154 - Episode 154
Pokémon the Series: Ruby and Sapphire
After participating in the Johto League, Ash decides to begin anew in yet another journey; this time by himself and Pikachu, in the land of Hoenn. Though he isn't alone for long, as 10-year-old May (who dislikes Pokemon, but just wants to come along to see the world) travels with him after Pikachu destroys her bicycle. Ash also meets up with his old companion, Brock, and May's younger brother, Max. Together, they travel along in Hoenn, battling Gym Leaders, entering Contests, and other events on the way to the Hoenn League.
(Source: Anime News Network)