Roll Quick, a Shout-out!

I decided to take @MissUnpopularOpinion -'s advice and do a Pokemon Colosseum/XD: Gale of Darkness story, so here goes nothing!!!!
Ash's so called 'friends and family' all of a sudden turn their backs on him, leaving the most loyal companions by his side!
Two months after those events, Ash and his friends end up in a mysterious region unfamiliar to them, in the Southern Hemisphere of the Pokemon World! What mysteries await our heroes? We'll find out!