A story about a brave Soviet spy working behind the enemy lines during WWII.

Grekov, the chief engineer of the instrument—making plant, is looking for a way out of the difficult situation at the plant: suppliers fail - they have to resort to assault, technology is disrupted, and quality suffers. The Institute of Production Management Problems, to which Grekov is seeking help, suggests introducing a new, as yet untested automated control system at the plant. Grekov agrees, although his colleagues, as one, believe that he chose the wrong time for this.

Young KGB agents investigate a complex murder case with several suspects.

The GPU secret service develops and conducts in 1923-24 an operational game aimed at the elimination of the Savinkov anti-Soviet underground.

After graduating from school, Seva Losev gets a job at a chemical plant. A lyrical film about the first experiences of independent life and first love.