The abuse of authority and the employer of a mining town make workers, influenced by reading articles from Ricardo Flores Magon in newspaper Regeneration, organize clandestinely and mutiny against the US, owner of the mine, which is refuses to rescue a group of workers trapped by a landslide.

Based on a true story in the American owned Cananea mine. It depicts how the owner profits while the Mexican workers struggle to survive and are exploited for their labour.

Analytical view of one of the least reported conflicts of national cinema: the Cristero movement that developed in the regions of western Mexico between 1926 and 1929, highlighting the inability to be faithful to both the Church and the State.