Margarita Popova

Professor Dimov is a diplomat who has been recruited as a spy by a foreign intelligence service. The suspicions fall on Dr. Belcheva. Major Kalinov is entrusted with the investigation of the case. He learns that she is Dimov's mistress. Paris, France. Dimov and Belcheva go out leaving a bag with secret documents in Belcheva's hotel room. Kalinov manages to retrieve the documents. After this incident Belcheva dies in hospital from poisoning. On board the plane Kalinov exposes the professor as a spy. Bulgarian counterintelligence officers arrest him.

The story of an indecisive young doctor.

After serving his military duty, Simo returns to his hometown. All day he rides his favourite horse Vihar and looks after the horses in the farm. Banov, the chairman of the cooperative farm, doesn't like Simo and wants to get rid of the horses, but Simo will not let this happen.

Captain Lipovanski is badly wounded during World War II. The Germans take him prisoner. After the end of the war, he is set free in a foreign country. He has been deceived that he was sentenced to death as a deserter and that his pregnant wife had died in a Bulgarian concentration camp. He trains for subversive activities against his own country. He is given the codename 'Golden Tooth'. Eager for revenge, he arrives in Bulgaria. There he learns that an agent provocateur has killed his wife, that his child is safe and has been raised in a nursery, and that he himself is respected as a hero. Golden Tooth sets out to eliminate his accomplices. With a file containing valuable documents, the traitors prepare their escape abroad. The spies are caught at the border. Golden Tooth kills the last of the traitors and dies driving his lorry into a precipice.

The construction of the first socialist town in Bulgaria - Dimitrovgrad.