The episode begins as Naruto, Kakashi, Sakura, Sasuke, and Tazuna are traveling in a boat through the mist to Wave Country (Tazuna's home). As the mist clears a little, the travelers can see the big bridge that is under construction. Naruto cries out in amazement, and is immediately told to shut-up because they don't want to call attention to the boat. Kakashi then asks Tazuna who is after him, explaining that if Tazuna doesn't tell them, their mission will end when the boat reaches shore. Tazuna explains that a wealthy and super-dangerous shipping magnet by the name of Gato is after his life. This is because Tazuna is organizing the building of the bridge which interferes with Gato's shipping monopoly. Gato also sells a lot of illegal stuff and uses shinobi to take control of businesses and countries). Tazuna further explains that the reason he didn't pay for a B or A rank mission was because Wave Country is very poor. Tazuna says that if they abandon him now, he will die, and his daughter and grandson will be miserable and hate leaf ninjas so they agree to help. When the boat reaches land, Naruto and company begin to escort Tazuna home. As they walk, Naruto decides that it's his turn to act cool and he randomly throws kunai into the bushes, claiming he has protected them from danger (he looks like an idiot.) (Not sure if this is important ... but, Naruto almost hits this snowshoe rabbit. Kakashi realizes that it is not a normal rabbit and gets suspicious.) All of a sudden, Kakashi shouts at everyone to get down. They all duck just as Zabuza's weapon flies over their heads and into a near-by tree. Zabuza appears standing on his weapon. Naruto thinks that this is finally his chance to play the hero, but Kakashi tells him to get back, identifying their new enemy as Hidden Mist's Missing-nin, Momochi Zabuza. Kakashi says that against Zabuza's high skill level, he will need to use his Sharingan (a specialized eye that he hides under is leaf head-protector, that gives him the ability to read and copy techniques -- however (according to Sasuke) this ability only appears in a select few members of the Uchiha clan). Zabuza's goal is to kill Tazuna, so Naruto, Sasuke, and Sakura surround Tazuna, and Kakashi and Zabuza prepare to fight. Zabuza jumps to the water and performs ninpou, hidden mist no Jutsu, and he seems to disappear into the mist. Kakashi tells them to be careful, Zabuza is known for his silent killing. As Kakashi gathers energy, Sasuke feels the immense powers of the two Jonins, and feels as if this much pressure could drive him crazy (it looked like Sasuke was ready to kill himself...I don't know...but I didn't like it). Anyway...Kakashi tells them not to worry, saying that he will protect them with his life. Suddenly, Zabuza appears behind Sasuke and Sakura and in front of Tazuna (he broke through their guard easily). Zabuza claims it's over and swings his weapon. Kakashi sees the attack coming and runs in, stabbing Zabuza with a Kunai. Water - not blood - leaks out, and the wounded Zabuza turns out to be a water clone. The real Zabuza appears behind Kakashi and attacks him with his weapon, appearing to cut him in two. However, this Kakashi turns out to be a water clone as well (Kakashi had copied Zabuza's technique). The real Kakashi appears behind Zabuza, holding a kunai to his throat. He instructs Zabuza not to move, and the episode ends as Kakashi proclaims that the fight is over.