Slavica, Marin and a group of operants hide the newly built ship from the Italian occupation forces. They end up arrested, but the partisans rescue them and they take part in the string of actions.

The film has two stories. Story 1: A group f partisans, fighting against the enemy and harsh winter storm, comes to the village where locals are hostile to them. Story 2: One night during the war, a daughter of railway station chief helps the wounded partisan commander to escape; however Germans discover her deeds, and kill her.