Episode 162
While on the way to May's next contest, Ash and friends must stop at a nearby island to switch to the ferry to the next island. They let their Pokémon out to play and Donphan, still as playful as ever, tries to play with some Rhyhorn, only to be chased by their parents. After being saved by Nurse Joy and her Meganium, Grovyle gets into a conflict with a wild Tropius and beaten badly. Meganium heals Grovyle and Grovyle falls in love with her. However, Meganium and Tropius love each other! Now Grovyle decides to battle Tropius again to get revenge, and win Meganium's love!
Aired 26/01/2006EP 162 - Episode 162
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)