A court session is underway. The facts of violations and embezzlement at a small plant are being examined. The chief engineer of the enterprise, Chistukhin, takes all the blame upon himself. At first glance, the plant director appears to be uninvolved in the crime. Gradually, we realize that she is not entirely innocent.

The construction of the Kremenchuk hydroelectric power plant is in full swing, but the Dnieper may flood the construction site. In order to save people, the chief engineer Ilchenko decides to blow up the newly built dam... The workers do their best not to let this prevent them from delivering the HPP on schedule.

In one of the southern ports, state security authorities detained a spy with a plan for the object of sabotage — a floating dock, prepared for towing to a remote port. Major Lyudov, according to a number of signs, realizes that a whole group of enemies is operating in the city. With the help of Rakitina, the librarian of the floating dock, Lyudov and his assistant state security lieutenant Savelyev, they manage to unravel the tangle of espionage ties and prevent the crime.

The talented artist entered a seminary, but, disappointed in the clergy, found the strength to leave the Church.

Two tankers loaded with gasoline made the Tuapse - Leningrad flight. Suddenly they were fired upon by German bombers - that is how the war began for them. One of the ships perishes. But the second continues on its way to its destination ...

About the beginning of M. Gorky's literary activity. Arriving in the provincial town of Samara, Alexey Peshkov publishes one after another incriminating feuilletons under the pseudonym Yehudiel Chlamydia. Acquires enemies, friends, becomes a famous writer and leaves for Moscow.