Naruto Episode 13

"Haku’s Secret Jutsu – Crystal Ice Mirrors"

This episode begins on the bridge where Kakashi, Sakura, Sasuke and Tazuna face Zabuza and Haku. The bridge is fogged with the mist from Zabuza. Again, Zabuza makes remarks about Sakura and Sasuke being novice’s. Sasuke easily kills the shadow clones that Zabuza replicates. Zabuza realizes that Sasuke has already gotten much stronger.