Land of Waves Arc
White Past: Hidden Ambition - 白い過去·秘めた想い
(Shiroi Kako - Himeta omoi)
"Rocks" by Hound Dog (Japan)
"Rise" by Jeremy Sweet and Ian Nickus (U.S. TV)
The seal within Naruto that has been holding the nine tailed fox spirit dormant has been broken, giving Naruto a mass amount of uncontrollable chakra. Naruto becomes enraged into a frenzy. He grabs hold of Haku and punches him with so much force that he goes flying through one of his ice mirrors and onto the ground several yards away. The mirrors around Naruto shatter while Haku slowly gets up off the ground.
Naruto charges like a blind bull towards Haku; however, he stops as the boy's mask drops to the ground. Naruto realizes that it is the same person he met earlier in the forest. He goes insane wondering how someone that nice would be helping Zabuza.
In a flashback that tells the details behind Haku and Zabuza's past. Haku has the power to control water, a blood line trait passed down from his mother. Blood line traits such as this were blamed for the misfortune of civil war in his country and those who had the power were targeted and killed. Haku's father found out about his wife's ability and killed her. He then tried to kill Haku; however, subconsciously in defense Haku drove shards of ice through his father, killing him. Haku then became an orphan, who roamed the streets looking for food and shelter. He tells Naruto that he learned what the most painful thing in the world is at that point, the feeling of not being wanted. When Haku met up with Zabuza, his life changed. He now had something to live for and someone in the world needed him. When the flashback ends, Haku tells Naruto to kill him. Haku says that he is of no more use to Zabuza; therefore, his life has no meaning. Naruto hesitates and refuses to acquiesce. At the other side of the bridge, Kakashi tries to find Zabuza through the thick mist. He is able to find him using his tracking ninja dogs. The dogs pin Zabuza down as Kakashi prepares to use his Lighting Blade jutsu.
"Wind" by Akeboshi