A romantic story about the Black Sea sailors and their girlfriends...

All the years spent behind the school bench, they were devoted to the dream of flying. And now they are again students, but they are solving completely different problems. Three young daredevils conquer the sky, forgetting about earthly problems and disputes. But the everyday life of test pilots of supersonic fighters is unpredictable and dangerous. A routine training flight overnight can be a harsh test of courage for them. Today, future aces will face a difficult exam, for which life itself will put a mark.

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.

A story about high school students whose holidays were overshadowed by the outbreak of war. Enrolling in the militia, they not only staunchly assist the Soviet troops in the rear, but are also ready to defend their native city with weapons in their hands.

About the concerns of the reserve officer, and now the secretary of the district committee Kirill Buzhor.

An intellectual and writer involved in underground revolutionary activity is imprisoned, where his convictions and will are put to the test. Based on Lesia Ukrainka’s short story “Mistake (Thoughts of a Prisoner)”.