Madara's lineage didn't end at the valley of the end. His legacy lived on through Minato and Naruto. Strong/Godlike! Naruto. NaruHina Finished.

So this story is set after he loses the Alola league. His friends end up ditching him because they feel like they have been held back by Ash. Only his Alolan friends stick with him and a select few of his older friends, and they live in Alola from then on. A year later, a trainer named Red defeats the Kanto champion. Six months later, Lance falls. Then Steven and so on. Over the course of five years, Red beats all seven champions and becomes a true pokemon master. But something is off about this kid.

Elemental Nation is tearing itself apart from the inside. It couldn't be saved. A natural disaster has stuck the Elemental Nations, not everybody could be saved. The jinchuuriki has been acting off, as the Beasts and the animals knew and such that they tried to save themselves. Hiruzen after hearing about the destruction of the nation decided that he will be transporting people of this continent to that of another, a continent that was only visited once before, whom did he choose and who else is going from Elemental nation to the other end of the world.