"The Number One Hyperactive, Knucklehead Ninja Joins the Fight!" (意外性No.1、ナルト参戦!, Igaisei Nanbā Wan, Naruto Sansei!) is episode 14 of the original Naruto anime.
Naruto finally joins the battle on the bridge. Sasuke is having a hard time fighting Haku and is trapped in Haku's Demonic Mirroring Ice Crystals. Kakashi is unable to help them, as he is dealing with Zabuza while protecting Sakura and Tazuna. He orders Sasuke to continue attacking the mirrors from within while Naruto attacks from outside. Naruto is oblivious to Haku's jutsu and enters the cage of ice mirrors. Sasuke tells Naruto that he is a complete loser and that now they are both trapped. After a little arguing, both agree to work together. Haku reveals that he doesn't like to kill his enemies but will do so if he must.
|Role||Seiyū||English Voice Actor|
|Naruto Uzumaki||Junko Takeuchi||竹内 順子||Takeuchi Junko||Maile Flanagan|
|Sasuke Uchiha||Noriaki Sugiyama||杉山 紀彰||Sugiyama Noriaki||Yuri Lowenthal|
|Sakura Haruno||Chie Nakamura||中村 千絵||Nakamura Chie||Kate Higgins|
|Kakashi Hatake||Kazuhiko Inoue||井上 和彦||Inoue Kazuhiko||Dave Wittenberg|
|Tazuna||Takeshi Aono||青野 武||Aono Takeshi||Kirk Thornton|
|Zabuza Momochi||Unsho Ishizuka||石塚 運昇||Ishizuka Unshō||Steve Blum|
|Haku||Mayumi Asano||浅野 まゆみ||Asano Mayumi||Susan Dalian|
|Narration||Toshihiko Seki||関 俊彦||Seki Toshihiko||Quinton Flynn|