Sergey Tsybulnikov

Major of the border service Konstantin Kudin serves at the outpost where his father died. A devoted, perceptive, and honest commander, he regularly refuses promotions, which displeases his wife. During a border patrol, Kudin discovers a stone containing spy equipment and thwarts the plans of several groups of criminals: the local businessman Tyurin, who is engaged in drug smuggling; his patron among the border guards; and a group of terrorists planning a terrorist attack in Minsk. In fulfilling his duty, Kudin not only risks his own life but also puts his family members at risk.

A professional intelligence officer, Jan, who performed a special assignment at the Abwehr intelligence school during the Second World War, returns home. Along the way, he is ambushed by the "forest brothers", led by his fellow student at the intelligence school. He fabricates evidence, according to which Jan gets a "tower". Instead of executing the sentence, Yan is made a "doll" for NKVD cadets to practice their combat skills. Jan manages not only to survive in unequal battles, but also to escape. Run away to finally see his wife and daughter, to restore justice.