Battle on the Bridge! Zabuza Returns!

Naruto has a dangerous encounter with Haku in the forest, but is Haku there to cause trouble? Naruto and Sasuke better complete their training, as Zabuza is alive and has returned for round 2. Will Kakashi, Sasuke, and Sakura be able to defeat the Demon of the Mist? And, can Naruto arrive in time to help out?