Three boys are investigating a ruins of the old fortress during summer vacations.
Edward Dymek
Mandaryn
Henryk Gołębiewski
Manius 'Pikador'
Roman Mosior
Bogus 'Perelka'
Zdzisław Maklakiewicz
Graf
Gustaw Lutkiewicz
Photographer Hubert
Adam Bahdaj
Writer
Stanisław Jędryka
Director