Police Major Igor Grom is known throughout St. Petersburg for his disruptive character and irreconcilable position towards criminals of all stripes. Incredible strength, analytical mind and integrity - all this makes Major Grom a real superhero. His life is ideal: during the day he catches criminals together with his partner Dima Dubin, and spends his evenings in the company of journalist Yulia Pchyolkina. The complete idyll is interrupted by the appearance in the city of a mysterious villain calling himself the Phantom. He invites Grom to play a dangerous game, in which the stakes are the lives of ordinary people.