Cachitos de hierro y cromo is a Spanish musical-themed documentary program, directed by Jero Rodríguez and hosted by Virginia Díaz. It is an unapologetic musical display of RTVE's sound legacy in the form of performances on the set of programs such as 'Aplauso', 'Galas del Sábado', 'Mapa Sonoro', 'Zona Franca' or 'Los Conciertos de Radio 3'. For nearly 60 years, artists and other specimens have stormed viewers' screens. The result is a polyphony of images and memories that includes everything from James Brown to Camela, from Perales to REM, from Gabinete to Violent Femmes. And so all the time. Our secret weapon has been the historical archive of TVE, the repository of Spanish collective memory for more than half a century.

Cubelles, Tarragona, Spain, Christmas 1985. Five friends make an unexpected discovery in the forest: a woman disguised as Santa Claus trapped in a deep hole dug in the middle of nowhere.

Maria, the last member of a good provincial family of long tradition, wants to live the atmosphere of these musical groups that proliferate all over the world. He meets Ricardo, a former partner in the advertising world, who has self-marginalized because he got to the point where he felt disgusted by this false world. Maria tries to leave him, but has just integrated into this chaotic environment.

Madrid, 80 A couple, Juanjo and Rachel, threatening their relationship when Juanjo falls in love with another girl, Marta.