 Then Bill and Missouri meet with Consuelo Ramírez, a diligent Mexican agent, who informs them that Bill's father is among the prisoners in the mine.After that, the heroes find themselves in a conflict with the outlaws in the middle of incessant fights, chases and action.Writing about the film's atmosphere, Cline says that this serial was a "grim tale...[with a] mood of ominous dread."