NIGHT WATCH: Among normal humans live the "Others" possessing various supernatural powers. They are divided up into the forces of light and the forces of the dark, who signed a truce several centuries ago to end a devastating battle. Ever since, the forces of light govern the day while the night belongs to their dark opponents. In modern day Moscow the dark Others actually roam the night as vampires while a "Night Watch" of light forces, among them Anton, the movie's protagonist, try to control them and limit their outrage.

DAY WATCH: Anton belongs to the Forces of the Light as well as his powerful girlfriend and apprentice, but his son is a powerful teenager from the Darkness and Anton protects him. When the balance between Light and Darkness is affected by the death of some evil vampires, Anton is framed and accused of the murders, and he chases an ancient chalk that has the power of changing the destiny of its owner.