The Assassin of the Mist!

On the way to the Land of Waves, with Kakashi threatening to abandon the mission if not provided an adequate explanation for lying about the mission's difficulty level, Tazuna reveals his desire to build a bridge to save the impoverished Land of Waves from the wealthy shipping-magnate Gato. Hearing his story, Team 7 agree to go through with the mission regardless for humanitarian reasons. But once on the bridge, the group is ambushed by Zabuza Momochi, a rogue ninja from the Hidden Mist Village who works for Gato. Refusing to hand Tazuna over, Kakashi is forced to reveal a strange eye. The former confused as to how Kakashi obtained it, Sasuke and Zabuza both recognize the strange eye as a Sharingan. While Team 7 protects Tazuna, Kakashi engages Zabuza, both using clones to distract the other to get them from behind.