Sakura's Determination!

is episode 141 of the original Naruto anime.

Synopsis
Naruto takes on Arashi, but gets trapped easily. Sakura thinks he's dead and Naruto ends up blowing his sneak attack cover to protect her. Naruto tries his attack again, but his injury causes a problem. Naruto gets trapped in an attack that will crush him if he doesn't get out. Sasame attacks Arashi and manages to set him free for a second. However, it doesn't last long and he soon tries to kill Sasame. Sakura jumps in the way and says she will give her life to protect her friends. Naruto tells her she can't die and Arashi tries to finish Naruto off. Sasame causes enough of a distraction for Naruto to break free. The attack caused by Naruto frees Arashi, and Arashi protects Sasame. The place begins to collapse and Jiraiya and Gamahiro arrive. Arashi throws them out and tells them he can't leave since he is a puppet. He tells Naruto that Sasuke is alive and they all leave, leaving Arashi behind. The Fūma clan promises to rebuild their town and everyone heads back to Konoha. Considering herself to have been of little use, Sakura asks to become Tsunade's pupil and learn to become a medical ninja.