Shurik, better known in the diving environment as the "Black Macedonian", has been diving abroad for many years, where he got as a teenager after the death of his father in a gangster showdown. Shurik's only relatives in Russia remain his grandmother Pelageya Ivanovna, a retired police colonel. Unexpectedly, she asks her grandson to return. Shurik, over whom clouds have been gathering for a long time because of his involvement in illegal underwater archeology, responds to his grandmother's invitation and returns to Kaliningrad.