Brother and sister Danya and Valya move with their mother to a northern seaside town and immediately become participants in an exciting but dangerous adventure.
Cast:
Nikolai Volkov St., Inna Zhuravel, Aleksey Zaytsev, Tanya Demushkina, Yura Bondarenko
Production:
Mosfilm
Foma Konovalov
Glafira
Pasha Zhgutov
Valya
Danya
Grandson Foma Konovalov
Stepan Novoselov
Natalya Yevgeniyevna
Skornyakov
Foreign Ship Captain
Marya Stepanovna
Pyotr Mikhaylovich
Foreign Ship Skipper
Radio Operator
