A young engineer Dmitriy Zherekhov who came to the aircraft plant is trying to prove to the director that it is necessary to switch to new methods of organizing production. He is supported by both experienced test engineer Aleksei Sedykh and test engineer Lyudmila Rudneva. Lyudmila likes Dmitriy, but his rigidity and rationalism complicate their relationship...

An ancient blade with diamonds is stolen from the museum where Alexei Gurov works as a restorer. Soon an old icon is stolen from Gurov's apartment. Head of the crime investigation is the police colonel Georgy Arefyev. Everyone knows that Gurov is obsessed with collecting rarities, so suspicion falls heavy on him.

Torn by personal guilt, Italian General Umberto Nobile reminisces about his 1928 failed Arctic expedition aboard the airship Italia.

The plot of the film is the love of a married woman, Anna Karenina, and a young officer, Aleksei Vronsky. Anna leaves the family in search of happiness to her beloved person. She has to take a very serious step in her life - to part with her son. The attitude of the high society towards her is changing. All this brings a lot of pain and humiliation to the main character. The tragic story of love and betrayal, the fate of a woman, for the sake of passion who decided to change her life irrevocably.

About Lenin's brother Alexander Ulyanov and his comrades' fight against the Russian autocracy.