NARUTOナルト
Chunin Exams
Episode 28
Eat or be Eaten: Panic in the Forest
The second exam starts in the “Forest of Death.” Naruto tells Sasuke and Sakura that he needs use the bathroom and heads into the bushes. But when Naruto returns to the team, Sasuke suddenly knocks him out. Sasuke notices that an enemy disguised himself as Naruto. Sasuke pursues the intruder but is unable to capture him.