Two friends, Valya and Slava, come up with an interesting game for the kids in their neighborhood—called "sea crew"—and an old abandoned shed serves as their "ship." But the game is just a game, and the kids want to participate in something real. Then they receive a letter from an older friend — the virgin lands where he is heroically working are short of tractors. Here it is, a real job — they need to collect scrap metal to build a tractor! What's more, the kids decide to raise a sunken barge from the bottom of the Neva River...
Valentin Efimov
as Валя
Лев Борисов
as Михаил
Владимир Особик
as Слава
Вера Поветкина
as Женя
Александр Арцимович
as Андрюша
Юрий Мелентьев
as Паша
Люся Барсукова
as Лида
Liliya Gritsenko
as тётя Люся
Владимир Самойлов
as Николай Трофимович, отец Вали
Степан Крылов
as водитель директора тракторного завода
Юрий Соловьёв
as милиционер
Владимир Татосов
as фотограф
