Kakashi prepares to stop Zabuza once and for all, but Haku has other plans. Zabuza's employer shows up and he's decided to take matters into his own hands...

To prevent further problems, Sasuke thinks up a password to determine friend from foe, but will it be that simple? Meanwhile Naruto has his hands full with a giant snake. Can he handle this on his own and what about Sasuke and Sakura, can they survive the ordeal?