the no1 hyper active knuckle head ninja joins the fight

Having arrived, with Kakashi preoccupied with Zabuza, Naruto attempts to help Sasuke by attacking the Crystal Ice Mirrors from the outside while Sasuke attacks from the inside. But Naruto's unfamiliarity with Haku's abilities traps him as he and Sasuke are forced to work together against Haku, who sees that he must make an exception to his no killing policy.