When the Chicano laborers at a New Mexico zinc mine vote to go out on strike, their action meets with violent pushback from their bosses and local authorities. After the laborers are enjoined from picketing, their cause is taken up by their wives, who willingly face the peril of the strikebreakers. Controversial effort from blacklisted filmmakers, featuring the real strikers amongst the largely non-professional cast, stars Will Geer, Rosaura Revueltas. 94 min. Standard; Soundtrack: English.