About Lenin's brother Alexander Ulyanov and his comrades' fight against the Russian autocracy.
Three classmates of the naval school met many years later in the Northern Fleet. Their fates were different. One of them became the commander of a cruiser, while the other two had complex personal problems. In these circumstances, everyone behaves differently, sometimes not opening up from the best side.
In the Soviet airbase, occupied by the Nazis, a resistance group occurs, led by a modest girl Anna Morozova. For each victory (important, albeit small on a scale of the war) they have to pay a heavy price.
