S02E77: Light vs. Dark: The Two Faces of Gaara

Gaara continues to talk about his past. When Gaara states that Naruto can't become stronger when he fights for everyone else, Naruto recalls that if he didn't meet his friends, he would be the same as Gaara. Realizing that he has to protect his friends, Naruto overcomes his fear and decides to take on Gaara.