Naruto Shippuden Episode 409, "Their Backs," is a Chūnin Exams filler episode featuring Team Asuma (Sakura, Ino, Chōji) battling Team Saya while flashing back to Naruto's training with Jiraiya. The episode centers on Sakura's resolve and chakra control, alongside Naruto’s control issues with the Nine-Tails' chakra. Detailed plot analysis is available on Narutopedia .