Several years after the fourth great shinobi war, the Shinobi Alliance seemed to be a major success. However that was until a new Raikage was named, a power hungry fool who had only cared for capturing the Nine Tails and forcing it into one of Kumogakure's Shinobi.
During the time of the Fourth Shinobi war, Obito and Madara were successful in capturing the eight and nine tails, though Naruto had survived the extraction. Killer Bee having been not so lucky. The ten tails fully revived, Naruto had risked his life battling it while Uchiha Sasuke and Haruno Sakura focused on Madara Uchiha, as well as the four Hokage, while Hatake Kakashi dealt with Uchiha Obito. Both had ended up dying, Madara not being capable of holding back the canceling of the Impure World Resurrection, and Obito being slain down by Kakashi.
Uzumaki Naruto had successfully seperated the ten tails, back into the original nine bijuu. Though one problem remained, they're memories were lost. Their personalities reverted to that of a child, and they wandered off.
A hundred years later, the world is once again in chaos. Not learning the lesson taught by the Akatsuki, greed drove the rebirth of Shinobi.
Following the rebirth of the chaotic shinobi, the Akatsuki rose once more in silence. Led by the Raikage whom led the rebirth of Shinobi. They're goals are unknown, though they seem to be after the bijuu once more.