1928. Winter. Unprecedented construction of a giant plant Uralmash is getting under way. Rushing time of first five-year plans, incredible enthusiasm, inconceivable raging imagination, and also sabotages, provocation, suspiciousness, denunciation, famine and unsettled domestic life. And people of that time are the same, straight-out, resolute, goal-oriented, and moving towards the aim regardless of their own health. So is a main character a new head of the plant, a former Red Army cavalryman Alexander Bannikov (V.Gaev). He leads construction works as if he is marches into battle. It is exactly the kind of people of whom people say he lives for his work, and how one cant live for his work if at the height of the construction Moscow sends an order to stop it short.

A regular military call-up. Young guys, having got call-up papers and having passed a medical board checkup, enjoy themselves and spend the last days of freedom in different ways: some in discotheques, some in a company of friends outdoors, others are even carousing and scuffling. A colonel Nikitin (Yu. Nazarov) with a group of officers is ordered to accompany conscripts future marines - in a special train to the military service place, situated in the Far East. The whole trip takes several days. Right here, in the train wagons, with no dads and moms round, young conscripts are in for showing their worth and gaining their first experience of real army life.

A criminal drama set in the Soviet Union. Director of a Children's Theatre is sentenced to a prison term after a false accusation. He is spending his time locked up with a gang of teenagers

1932. Ural, city of Krasnouralsk. The power plant has been sabotaged. The turbine is out of order. Having put the guards to sleep, someone poured sand into the turbine oil. In Moscow, the leadership of the OGPU received a secret cipher. From it it becomes known about the conspiracy of German intelligence against the USSR. Its main purpose — subversive actions in Soviet power plants. Special attention is paid to the Urals and the Dnieper under construction. Diversion in Krasnosilske — link in this chain. In Krasnotalsk sent a special agent of the OGPU Viktor Sergeevich Lartsev.

Veliky Ustyug at the beginning of the 17th century. Semyon Dezhnyov falls in love with the daughter of a rich merchant — Avdotya, but the groom is poor. The girl's father sets a condition: Dezhnyov must go to Siberia and get rich — only then will he receive consent to marry. Dezhnyov agrees and leaves for Siberia. Although he passes the test, he does not return to Avdotya. He finds a strait "from a warm sea to a cold one": from the mouth of the Kolyma he swims to the Pacific Ocean and opens the strait between the continents.

A simple guy, Styopa, without suspecting it, brought with his car to a small town a gang of gangsters looking for a unique diamond.