Pashka Girya and Valka Komarov, cadets of the school of military musicians, tired of strict discipline, ran away to the south. Having experienced a number of adventures and meetings with interesting people, the heroes judiciously assessed their deed and returned to school.

Schoolboy Igor dreams of becoming a naval officer. But his father, a captain second rank, dreams of a musical career for his son. When the family moved to one of the northern islands, Igor organized a choir at school and became its leader. One day, the boy was hurt, and he began to doubt his abilities. But the arts competition in Murmansk, where he successfully performed in place of the soloist who had lost his voice, restored the dreamer's faith in his talent.