In a fit of rage, Naruto unknowingly uses some of the chakra from Nine-tailed’s reserves. Kakashi senses this and, fearing that the seal that holds the fox inside Naruto has been broken, decides that it’s time to do away with Zabuza. After Haku sees Naruto’s mysterious source of chakra healing all the wounds he has received, he tries to escape. In one swift move, Naruto dodges one of Haku’s attacks and grabs his arm. He then punches Haku in the face, sending him flying and destroying his ice prison. Naruto prepares to deliver the final blow, and Haku faces death, causing him to see that the mask he wore throughout the battle has been shattered.