Naruto Shippuden episode 142, "Battle of Unraikyo," marks the start of the "Master's Prophecy and Vengeance" arc, following Sasuke's alliance with the Akatsuki, as team Taka encounters and fights the eccentric Killer B. This episode also reveals that Itachi's Amaterasu was meant to protect Sasuke from Madara. You can watch the uncut, uncensored version of the episode on Viz or Narutopedia . Naruto Shippuden 142: Battle of Unraikyo - shannaro!!!