An avalanche cuts off builders of the Baikal-Amur railway from civilisation. Alexander Ivanov's team tries to find a short way through the Taiga to progress the railway.
Yuri Abakumov, a steelworker at the Centrolit plant in Tikhvin, talks about the profession of a steelworker.
In the compartment of the express train, worker, Hero of Socialist Labor E.I.Lebedev, director of the Zvezda plant V.G.Pershin and Doctor of Philosophy O.K.Shkaratan, to the songs of students, argue about the hierarchy and value of professions.
