A thousand years ago an agreement was reached, the Light and the Dark negotiated a truce in order to prevent their mutual destruction. Each side ensures the other obeys the rules. The Night Watch are “the good guys” preventing the Dark from breaking the truce. But legend tells of the arrival of a “Great One” who will choose a side, and that side will become unstoppable.
Based on a trilogy of Russian books(by Sergei Lukyanenko) Nochnoy dozor is the first in a series of three books, and for the most part deals with Anton. Born human, he was one of the few able to see, and so become, one of the Others. Each new arrival must choose a side, Light or Dark, he chooses Light, and the film opens with him tracking down a vampire.