Pikachu's Revenge

Pikachu and Ash are walking down the river, but Ash is acting strange. Ash asks Pikachu to wait there, and Ash leaves. Pikachu waits, but Ash doesn't come back, Pikachu rushes to find him, only to find that Ash is leaving... Pikachu teams up with a young Pokemon trainer, Grace, to find Ash. But this adventure leads to a world of Aura, legendaries, and prophecies.