At New Mexico's Empire Zinc mine, Mexican-American workers protest the unsafe work conditions and unequal wages compared to their Anglo counterparts. Ramon Quintero helps organize the strike, but he is shown to be a hypocrite by treating his pregnant wife, Esperanza, with a similar unfairness. When an injunction stops the men from protesting, however, the gender roles are reversed, and women find themselves on the picket lines while the men stay at home.
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| Production | Paul Jarrico | Producer |
| Directing | Herbert J. Biberman | Director |
| Camera | Leonard Stark | Director of Photography |
| Editing | Joan Laird | Editor |
| Production | Jules Schwerin | Associate Producer |
| Camera | Stanley Meredith | Director of Photography |
| Editing | Ed Spiegel | Editor |
| Production | Jules Schwerin | Production Manager |
| Sound | Sol Kaplan | Original Music Composer |
| Directing | Jules Schwerin | Assistant Director |
| Production | Simon Lazarus | Producer |
| Production | Herbert J. Biberman | Producer |
| Writing | Michael Wilson | Writer |
| Sound | Harry Smith | Sound |
| Sound | Dick Stanton | Sound |
| Production | Sonja Dahl Biberman | Associate Producer |
