Pokémon: To Be a Pokémon Master

Must Be Our Heroes and the Witch! (1x3)

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With Misty having rejoined Ash & Pikachu, they continue their travels where they meet up with Brock and Cilan. However, Brock is feeling down due to a fresh heartbreak only to end up being abducted by a wild Hatterene. Why did this happen and can Ash, Cilan & Misty find a way to get Brock back?