A zoologist and a biochemist go out into an oilfield with a cameraman and filmmaker to observe and study the elusive oil gobblers.
| Actor | Role |
|---|---|
| LLubomír BenešBauer | Bauer |
| JJiří NěmecMráz | Mráz |
| IIvo KašparSoukup | Soukup |
| JJan RokytaNavrátil | Navrátil |
| EEmil NedbalNedbal | Nedbal |
 Čestmír ŘandaCommentary (voice) | Commentary (voice) |