The story of the confrontation between chief engineer Petin, a careerist and a fraudster, and Litvinov, an experienced construction supervisor, a solid, direct and generous man.

The third film of the film trilogy ("Personally known", "Emergency assignment", "Kamo's Last Feat") about the Bolshevik revolutionary S.A.Ter-Petrosyan, known as Kamo (1882-1922).