In "Naruto Shippuden" episode 486, Sasuke will be able to finally induce Futsu and Oyashiro to get out of hiding. The latter is the Kekkai Genkai collector. As the intel from Orochimaru has revealed, Oyashiro possesses important information about the exploding humans. And as expected, there will be another human that will explode in the Coliseum. This will cause the battle between Futsu and the last of the Uchiha to stop.
Sasuke Goes To Fushin's Birthplace
Sasuke will go to the birthplace of Fushin in "Naruto Shippuden" episode 486. Fushin is the leader of the Lightning Group. But that place is also along the route of a missing vessel from Kirigakure. Therefore as he journeyed to find its location, he will also discover that the missing ship is there. While there, he will be attacked by somebody who looks like a genjutsu.
Sasuke will be able to overcome this man by using his knowledge of Sharingan. At that time, he will also sense that he will eventually find the individual who is responsible for all the human bomb attacks. The Kiri ninjas will also attack Sasuke in "Naruto Shippuden" episode 486, but he will be able to defeat them because the shinobi will give him help.
Sasuke's Investigation Will Go Deeper
"Naruto Shippuden" episode 486 will also show Sasuke getting deeper in his investigation of the exploding humans. He will be able to go to Hell's Valley where he will be confronted by Fushin. Fushin is the leader of the Lightning Group. Sasuke will think that he is the person behind all the atrocities, although he is not 100 percent sure.
After the showing of "Naruto Shippuden" episode 486, there will be another two episodes that will dwell on Sasuke's travels and discoveries. Episode 487 is entitled "Sasuke's Story: Sunrise Part 4 which will air on Dec. 22. The next episode after that is slated on Jan. 5, 2017.