173: Naruto Episode

They discover a God Tree sapling being grown illegally, which Victor plans to use as a source of power by feeding it humans.

The episode details the betrayal by Hanzo of the Salamander and Danzo Shimura , which led to Yahiko's self-sacrifice. This "second great pain" transformed Nagato into Pain, leading him to believe true peace can only be achieved through shared suffering. Naruto Episode 173

The episode focuses on Isaribi , a girl who was experimented on. Seeing Naruto fight despite being treated as a monster himself, she finds the hope to go to Konoha for a potential cure from Lady Tsunade. They discover a God Tree sapling being grown

Naruto, with the help of the Nine-Tails' chakra, defeats the scientist Amachi . He then summons Gamabunta to evaporate the massive sea monster, Umibōzu, which is threatening the group. The episode focuses on Isaribi , a girl

There are two episodes titled within the Naruto franchise, belonging to the original series and the Shippuden sequel. Naruto Shippuden Episode 173: "Origin of Pain"

The story follows Nagato, Yahiko, and Konan as they survive the war-torn Amegakure and eventually meet Jiraiya , who agrees to train them.

This is a filler episode from the "Land of Sea" arc.