Young boy traveling on the ship called "Equator" suddenly witnesses the activity of the spy and helps to catch him.
Jüri Krjukov
Mikhail Volkov
Vladimir Kenigson
Arina Aleynikova
Yuri Chekulayev
Nikolay Gorlov
Aleksandr Martynov
Leonid Dovlatov
Leonid Okunyov
Igor Pushakov
Tamara Yarenko
