The story of the friendship between a truck driver and a shoeshine boy who occasionally becomes his assistant when they travel together from the agro-industrial area of Santa Cruz to the high Andean basin of La Paz in a truck named "Mi Socio".
| Actor | Role |
|---|---|
| DDavid SàntallaDon Vito | Don Vito |
| GGerardo SuárezBrillo | Brillo |
| GGuillermo BarriosCura | Cura |
| BBlanca Irene UríaBetty | Betty |
| MMariel RiveraArminda | Arminda |
 Susana HernándezMatilde | Matilde |
| JJuana FernándezDoña Sabasta | Doña Sabasta |
| CCarlos SandalloNovio | Novio |
| MMiriam VillagómezNovia | Novia |
| HHugo PozoMecanico | Mecanico |
| GGuillermo AguirreNot listed | Not listed |
| GGuido AlvarezNot listed | Not listed |
| MMaría Luisa MercadoNot listed | Not listed |