After release from jail Andrey tries to start a new honest life but not everything is going as planned.
A man's corpse is found on the seashore. Conducting a thorough investigation, the young investigator Kovalev establishes the identity of the murdered man and his pursuer - in the past a provocateur, who gave the Hitlerites a group of underground fighters. At one of the interrogations the criminal recognizes in the prosecutor Skurchikhin former SS Oberleutnant and begins to blackmail him, not suspecting that he worked for the Soviet intelligence...
XVIII century. In the town square of Lviv, Ukrainian city under the Austrian yoke, there is a trade in humans. This displeases Cossacks led by student Maxim Zaruba, for which the rioters arrested. Showing ingenuity and resourcefulness, heroes seize the ship, attacking the fortress and freed slaves.
