Since the beginning of time, there have been "Others" - humans endowed with supernatural abilities - and for just as long, the Others have been divided between the forces of Light and Dark. In Medieval times, the armies of both sides met by chance, and a great battle began. Seeing that neither side had a clear advantage, the two faction leaders, Geser and Zavulon, called a truce and each side commissioned a quasi-police force to ensure it was kept; the Light side's force was called The Night Watch.