A young assistant prosecutor was entrusted with the case involving a collapsed bridge, discovering the engineer wasn't guilty after conducting her own investigation.

Autumn 1941. German tank troops are making another attempt to break through to the Uritsk and Pulkovo Heights. During heavy fighting, Soviet troops managed to stop the offensive of fascist tanks one and a half kilometers south of the Pulkovo Observatory. The 900 days of the blockade and the incredible courage of the Soviet people were approaching ...

The work-relate conflict between father and son disrupts the order of previously peaceful family.