El hombre propone...

The discovery of a human torso thrown into a waterway, leads the viewer to observe the work of modern criminology and the task of special agents to track and record the psychopath's mentality through the elucidation of techniques present in the reality of the police investigation.

Two rival landowners: one is exploiting the local peasantry and dispossessing them of their land, and the other believes in fair play and justice for all.

The new Sheriff is framed for a series of stagecoach robberies, but he succeeds in finding the real thieves.

Two rival gangs of outlaws are terrorizing a small town; el Comandante and his sidekicks pit them against each other and pick up the pieces.