You can hardly even call this a plot, since it happened in the past, but I need to know. Can we at least make a hypothesis as to why the Akatsuki lost, to make things more reasonable? The last thing that happened in the thread was the following:
The Magma had just gotten out of a war with Snake Warriors, leaving them utterly defenseless. There was a spy among the ranks pretending to be an ANBU Captain. The Akatsuki had infiltrated the Magma with full knowledge of the mapout of the village. The Magma's lava resources were dwindling, and I had cast a genjutsu that had seemingly sealed off the volcano, the very source of most of the Magma ninja's jutsu. Everything seemed to be in favor of the Akatsuki.
SO WHAT THE HELL HAPPENED?!
(One limiting factor I can think of is that the Magma ninja knew the land better, but that's it.)