Around 15 years after Madara was defeated in the Fourth Shinobi War, Naruto becomes the Hokage, and also causes Sasuke to come back to Konoha. Etc. and etc. There are children of the clans, even Uchiha and the Uzumaki/Namikaze lineage now. Though, as peace seems to settle, the reports of small villages getting killed off shows signs of biju, yet all are secured and sealed in hosts... The Gokage's find out that the ancient evil tailed beasts have risen, and have found hosts. Now, with the threat of a war even greater then the previous one, shinobi are now fighting for their lives...The only thing is, are you willing to let your entire world be destroyed, or will you fight to keep it?