The story follows Commander-in-Chief Mannerheim and Quartermaster General Airo at the Finnish Defense Forces headquarters in Mikkeli during the decisive moments of the Continuation War in the summer of 1944. With a major offensive on the Karelian Isthmus imminent, Airo gives the order to attack without consulting the commander-in-chief.
| Actor | Role |
|---|---|
 Joel Rinnecommander-in-chief Mannerheim | commander-in-chief Mannerheim |
 Jussi Jurkkaquartermaster general A. F. Airo | quartermaster general A. F. Airo |
 Tamara LundMrs. Markkovilla | Mrs. Markkovilla |
| KKapo Mantocolonel J. K. Markkovilla | colonel J. K. Markkovilla |
| MMatti Pihlajaeditor in chief, reserve lieutenant | editor in chief, reserve lieutenant |
| MMartti Pennanenhead of general staff | head of general staff |
| JJarmo Alonencaptain Hinder | captain Hinder |
 Leif Wagercolonel, Stockholm military agent | colonel, Stockholm military agent |
| NNisse Rainnecolonel in the operational department | colonel in the operational department |
| BBjarne Commondtlieutenant colonel Paul Hinder | lieutenant colonel Paul Hinder |
 Veijo Pasanenfront line veteran | front line veteran |
| KKalle Luotonenfront line veteran corporal Juona | front line veteran corporal Juona |
 Ossi Ahlapurosinging soldier on the train | singing soldier on the train |
 Heikki Kinnunenchief military servant | chief military servant |