In a parallel universe, during the epic battle of Kalos and Team Flare, the battle of the Zygarde forms managed to cause an explosion so strong, everything in the area blew up. Ash along with his Pokémon was blown away in the process. He was found lying near a river by a family and was taken care of. After staying there for 3 months and completely losing his memory of his previous events, Ash stays half-awake in the vast region of Heron. He befriended the kid and started calling the woman "Mom" and the man "Dad". Even a slight glimpse from the past gives him serious headaches, so how can Ash get back his memory, while the Heron region is invaded by some punks and behind them stands...