With all life in his world at stake, a long-time Pokémon Master challenges the progenitor of the fateful prophecy that threatens it. The resulting outcome of that event throws him across realities where he'll find even more world-ending calamities ahead of him.
The life of our would-be hero is not an easy one. But alongside a special little Eevee and a group of kind ponies who are used to saving the day, he might just be able to redeem himself of the sacrifices he had to make in order to save his world.
His adventure has more in store for him than just redemption, however, as it'll prove to be the stepping stone he'll need to grow as a person. If he is to save anyone in the way he truly wants to, then he'll have to learn to rely on others.