Rookie Instructor Iruka

is episode 176 of the Naruto: Shippūden anime.

Synopsis
Watching Konoha celebrate Naruto's victory, Zetsu decides to report to Madara of Nagato's death. Elsewhere, Team Samui head out to Konoha. Iruka goes to the destroyed Ninja Academy where he has a flashback of when he first became a teacher.