Battle on the Bridge! Zabuza Returns!

The week is up. Zabuza and the masked Haku hit the bridge at dawn, mist swallowing the workers, while Naruto — left behind to sleep off his overtraining — wakes to find the war started without him. At the bridge, Sasuke steps up to duel Haku and matches the senbon user strike for strike, fast enough to draw the first hint of respect from behind the mask. Then Haku makes a one-handed seal — a technique that shouldn't be possible — and the temperature drops.