Well...
Basically, There are ppl born with special magic powers. These are
known as the Others. Now, these others band themselves into Dark
Others and LIght Others, the latter being the 'good' ones. One day
both bands met on a bridge. Neither refused to give way and a
battle ensued.
The leader of the light others, seeing that both sides were so
evenly met that there was no way for the battle to be resolved w/o
a major loss of lives, decided to call for a truce.
As part of the truce, they agreed that no party was allowed to try
and influence new Others. New Others must be allowed to choose a
side of their own free will. As part of the agreement, the Light
others set up a group of others to watch over the Dark others, in
order to ensure that they do not break the Truce. This is the
Niight Watch. The Dark others set up a similar org called the Day
watch.
And so the truce had been kept for many many years. Both sides are
balanced and the truce was intact. One day, however, one Other that
is very powerful will arise. That other is so powerful that he/she
will tip the balance in favor of one side or the other.
The movie shows the rise of this OTher.
