In Moscow, the delicate balance between the forces of light and darkness, maintained by individuals known as Others, who swear allegiance to either side, is under the threat of being destroyed. The Night Watch, a group of light Others, polices the actions of dark Others, ensuring they abide by the treaty established centuries ago. Anton Gorodetsky, a member of the Night Watch, finds himself in the middle of this escalating conflict. His personal quest involving his son, who unknowingly possesses immense power, drives him deeper into the intricacies of the supernatural struggle. Anton's journey reveals hidden truths about the nature of the Others and the extent of his own powers.

As Anton delves further into the conflict, he uncovers a plot that could lead to a catastrophic war between the forces of light and darkness, potentially ending the world as they know it. The discovery of a cursed artifact, known as the Chalk of Fate, believed to have the power to rewrite destiny itself, becomes central to both sides. With the Night Watch and Day Watch, the overseers of the light and dark Others respectively, on a collision course, Anton must navigate a treacherous path. He is torn between his duties to the Night Watch, his desires to protect his son, and the moral dilemmas posed by the war. Amidst espionage, ancient prophecies, and a looming battle, Anton's choices will shape the fate of the Others and the human world alike.