Two teenagers Marco and Lyuda are helping border guards to catch a spy.
as Lyuda
as Marco
as Очерет
as Red-bearded
as Levko
as Gritsko
as Katya
as Kovalchuk
as unknown
as "Akula"
as mother of Mark and Gritska
as diversant - kapitan mini-podlodki
as predstavitel' gosbezopasnosti
as Alexey Vladimirovich - captain 1st rank
as kapitan 3-go ranga
as totya Lyudy
as kontr-admiral
