Former Special Forces soldier Leonid Zubov works as a forester in the taiga. Together with his associates, he solves crimes related to poaching, illegal entrepreneurship, crime in the territory entrusted to him, and also helps residents of the local village of Olkhovka to deal with emergencies and solve personal problems. Vera Bolshaeva, a rural paramedic, is in love with Zubov, which puts him in front of a difficult question - is he capable of falling in love with another woman after the tragic death of his wife.
Few days before his retirement, an experienced chief investigator gets assigned a new case, where a corpse mysteriously disappears from the morgue. The mortician swears that the man, killed by a train while saving a woman’s life, just got up and left. The woman happens to be a well-connected neuroscientist and she wants to know what happened to her rescuer. The elderly detective and the young doctor make an unlikely duo and their terse relations often get in the way of the investigation. But to get to the truth they have to work together. Intricate plot lines mix three different stories that unravel the mysteries of hundreds of WWII soldiers’ deaths, and even a terrorist plot.
Within one day, Alice's life changes. Her husband, prosecutor of the Leningrad region Pyotr Filippov, becomes the hero of several high-profile scandals. The reputation he had built for so long was destroyed. Now Alice must provide for the whole family herself. Years later, she returns to her legal career and begins work in the law firm of her university friend Vitaly Kalinin.
Anna Vorontsova, or, as her colleagues in the investigative committee called her, the Crow, has been refusing for three weeks to open a case on the disappearance of a famous Bohemian photographer. By a fateful coincidence, this man dies. Now, tormented by the pangs of conscience, the heroine sets her task to sort out this case at all costs.
The Sõpruse bridge connecting Russia and Estonia suddenly plunges into darkness. When the lights come back, in the middle of the bridge, on the borderline, a body is discovered. A joint Russian-Estonian investigation is appointed. Russian investigator Maxim Kazantsev and Estonian inspector Inga Veermaa will investigate a chain of crimes that are well prepared, masterly executed and contain “messages” on the topic of social injustice.
1989-1990. General Secretary of the CPSU Mikhail Gorbachyov begins global transformations in the USSR. He passionately wants to become a star in world politics and for this he is ready to go as far as he can to meet the West. But the perestroika planned by Gorbachyov leads to fatal, irreversible consequences. Intelligence officer Alexander Nechaev finds himself at the center of an operation organized by the intelligence services of several countries. During the months spent in Berlin at the moment of the breakdown of the entire post-war world order, Nechaev changed a lot. He no longer knows who is a friend and who is a traitor, but continues to defend the honor and interests of his Motherland...
Major Stepan Krucha heads the criminal investigation department of the Bitovsky Department of Internal Affairs. He is the master of his "land". The bandits call him Wolfman, fearing for good reason: you can "get away" from justice, but not from an ardent defender of the law. Shoulder to shoulder with Krucha, his "cubs" - Fedot Komov and Roma Lozovoy - are standing guard over law and order. And let the bandits think that they are cooler than Cool, our heroes are not the ones who can be kept on a leash. They will take any enemy by the throat themselves...