Pokémon — Episode 19: Pokémon Ranger and the Kidnapped Riolu! (1)

You are watching the episode Pokémon Ranger and the Kidnapped Riolu! (1) On their travels, Ash and his friends meet up with another Pokémon Ranger—Kellyn—and a Riolu. It turns out that Hunter J is after Riolu, due to its ability to use Aura Sphere before evolving. Ash and Riolu start to bond with their shared Aura, but J is insistent on getting it. This episode relates to the secret mission in Pokémon Ranger: Shadows of Almia, from which the player can transfer a Riolu that knows Aura Sphere to their copy of Diamond, Pearl, or Platinum.