The beginning of the 30s of the last century. A leak of classified information was found at the Soviet shipbuilding plant. Arriving under the guise of a scientist, the legendary chekist Karotin begins to unravel the threads of the conspiracy of the fascist spy organization. He is helped by...
Summer, 1944. A military airbase near the very front-line. A young soviet pilot Sergey makes his first practice flight. In the course of this flight he hears a call for help on the radio from Russian pilots, having an unequal air combat with superior forces of the enemy. Sergey rushes to their...
