It is the year 1915, and five Finnish men ski to Sweden via the Gulf of Bothnia to get military training in Germany. Among the men are Martti and Kalpa from the 27th Army Ranger Battalion. In the reserve, the troops spend their free time in a café called the Golden Anchor, owned by Sonja Strand. Sonja's captain serves in the Russian army, and Sonja has a relationship with Baron von Lichtenstein, who exploits Sonja who spies on Russia using Jew Isaac as her messenger.