It presents the struggle of the first unionized workers, after a strike for the implantation of the eight-hour day and the union right, in the sugar valleys of Peru. It is the story of the first union in the city of Trujillo, organized in 1921.
| Writing | Alberto Durant | Writer |
| Writing | José Watanabe | Writer |
| Camera | Julio Simoneau | Director of Photography |
| Writing | Miguel Barrón | Writer |
| Art | José Watanabe | Art Direction |
| Directing | Alberto Durant | Director |
| Sound | Guillermo Palacios | Sound |