Bomb attacks and political murders in early 20th century Helsinki. Eugen Schauman is disappointed with his father's activities in the Senate, and wants to achieve something bigger himself.

Lennart Hohenthal is enlisted as informant to spy on information about the governor-general's murder plan. The relationship with Santarmi becomes deeper than intended.

Schoolchildren's secret society gets out of hand and patriotic play becomes real. Arvi Nikolainen faces difficult choices.