Group of youngsters find a sunken sailboat used by guerrillas during WWII, raise it, repair it, and sail out to sea for adventure.
| Actor | Role |
|---|---|
 Mikhail KuznetsovProfessor Belov | Professor Belov |
 Evgeniy SamoylovGleb's Father | Gleb's Father |
 Ivan PelttserOld Fisherman | Old Fisherman |
 Viktor DobrovolskySchool Director | School Director |
| YYekaterina MelnikovaVadim's grandmother | Vadim's grandmother |