The film tells how two mice set off on a long journey in winter in search of the warm sun. Having different characters, little mice behave differently on a difficult journey.
| Actor | Role |
|---|---|
 Olga GromovaLittle mouse (voice) | Little mouse (voice) |
 Svetlana KharlapLittle mouse (voice) | Little mouse (voice) |
 Lev DurovBear / Badger (voice) | Bear / Badger (voice) |
 Boris NovikovHedgehog (voice) | Hedgehog (voice) |
 Mariya VinogradovaSquirrel (voice) | Squirrel (voice) |