Naruto Episode 95: The Fifth Hokage! A Life on the Line!
Episode 95 of 220 of Naruto, aired August 11, 2004, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Naruto finally lands a Rasengan into Kabuto's stomach, but not before Kabuto assures Naruto's certain death. Can Tsunade save him and protect him from Orochimaru?