Sergeant Kalle Ryhmy, Second Lieutenant Ville Romppainen, and Mörökölli the cat travel from the front lines to Helsinki for a vacation. The trio, traveling by train, rescue the mysterious beauty Dora and Argentine war reporter Santa Rosa from a snowdrift, who lead them on the trail of an international spy ring hunting for military secrets.
Sergeant Major Kalle Ryhmy

Lieutenant Ville Romppainen

Dora Rastola

Santa Rosa

Kars

Virt

Colonel Rastola

Lieutenant Kanera

Santtu

Jallu

Mrs. Hölppänen

Director Hölppänen

Innkeeper

Manti
Police Constable
Nightclub Singer (uncredited)

Colonel's Housemaid (uncredited)

Sergeant Vuoksinen (uncredited)
Soldier / Unmasked Stranger (uncredited)