A young boy of about 11 struggles to fit in with the usual activities concerned with life, especially at at school . He is somewhat timid and nervous and as a result often finds himself alienated from most of his contemporaries. This manifests itself , for example , in the problems he has with gymnastics and especially swimming. The arrival of a young and sympathetic teacher starts a turnaround in his life.
| Actor | Role |
|---|---|
 Michal PešekPavel Rajnoch | Pavel Rajnoch |
| JJiří KorytářJožka | Jožka |
| LLukáš MachalínekRobert | Robert |
| RRobert ViceníkTomáš | Tomáš |
| MMartin SpáčilHynek | Hynek |
| JJiří SamsonekPetr | Petr |
| SSoňa HronováMarkéta | Markéta |
| SSvětlana VojtěškováIva | Iva |
| JJana HorehleďováZdena | Zdena |
 Jana PlichtováNot listed | Not listed |
| VVladimír Durdík ml.Not listed | Not listed |
 Marie LogojdováNot listed | Not listed |
| LLadislav BambasNot listed | Not listed |
| NNaděžda LetenskáNot listed | Not listed |
| MMiroslav HorákNot listed | Not listed |
| MMagda ŠputováNot listed | Not listed |
 Eva MatalováNot listed | Not listed |
| AAlois LiškutínNot listed | Not listed |
| VVáclav AntošNot listed | Not listed |
| MMilada KuncováNot listed | Not listed |
| KKarel SemerádNot listed | Not listed |
| IIvan KalinaNot listed | Not listed |
| IIvan TrčkaSchoolboy | Schoolboy |
| RRadek PinďákSchoolboy | Schoolboy |
| ZZdeněk UrbanSchoolboy | Schoolboy |
| TTomáš HanáčekSchoolboy | Schoolboy |
| PPetr ŠiškaSchoolboy | Schoolboy |
| FFrantišek RakSchoolboy | Schoolboy |
| PPavel MachalaSchoolboy | Schoolboy |
| DDana PokrivkováSchoolgirl | Schoolgirl |