The difficult, dangerous, and selfless work of an expedition that set out for the harsh and deserted Plaza Wincul Valley in search of oil.
| Actor | Role |
|---|---|
 Duilio MarzioNot listed | Not listed |
 Nelly MedenNot listed | Not listed |
 Juan José MiguezNot listed | Not listed |
 Jardel FilhoNot listed | Not listed |
 Guillermo MurrayNot listed | Not listed |
 Ricardo ArgemíNot listed | Not listed |
 María Aurelia BisuttiNot listed | Not listed |
| OOmar TovarNot listed | Not listed |
| JJulio BianquetNot listed | Not listed |
| MMiguel Ángel MuiñoNot listed | Not listed |
 Romualdo QuirogaNot listed | Not listed |
| RRoberto GaribotoNot listed | Not listed |
 Jorge de la RiestraNot listed | Not listed |
| OOscar BordaNot listed | Not listed |
| JJuan QuetglasNot listed | Not listed |