Jack Coski (Jaakko Koski) returns to Helsinki and gets impressed by co-op Elanto.

The film deals with the Winter War of 1939-40 between Finland and the USSR. It begins with military exercises in the Autumn of 1939 and moves on to the Soviet invasion; the battle for Karelia; the bombing of Helsinki and other Finnish cities; as well as the activities of the foreign press corps in Finland and the heroic efforts of Finnish women and the Red Cross in their treatment of the wounded.

The film depicts Finland's actions in the Winter War and Continuation War using a compilation of material collected from narrators, map images, and TK photographers.