After some time, all four, but each in their own way, find themselves in St. Petersburg on the eve of the February Revolution of 1917. They face a difficult task: neither more nor less, to change the course of Russian history. It all started with Olga. If it hadn't occurred to her to take pictures at night, looking, Providence would have chosen someone else for its purposes. And so, an impossible bright flash from the Chinese "soap box" pulled out the faces of three friends from the darkness: police lieutenant colonel Mikhail Zhekhorsky (Chief), FSB officer Nikolai Ershov (Yersh) and former special forces soldier Gleb Abramov (Vasich). There was also a distant sound of the bell and Olgino premonition. And the fighter of the special forces detachment of the Ministry of Internal Affairs with the combat pseudonym Witch is used to trusting her premonitions. And not in vain...