Benito Lacunza (Alberto San Juan) a useless trumpet player returns to the town where he grew up for his fathers funeral. He soon discovers that his kind brother Lalo (Julian Villagran), knicknamed Iron Man because he likes to make sculptures from scrap iron, is about to get married.
His fiancee is Nines (Emma Saurez) a single mother whom Benito knows from their good times. Benito intends to save his brother from such a fate, but doesn’t count on his daughter Ainara (Violeta Rodriguez). She is a rebelious, introverted girl with whom Benito ends up forging an unusual relationship.
Benito Lacunza (Alberto San Juan) trompetista de tres al cuarto, vuelve a su pueblo natal para el entierro de su padre. Allí descubre que su bondadoso hermano Lalo (Julián Villagrán) – apodado el Hierros porque se dedica a hacer esculturas con chatarra -está a punto de casarse.
Su novia es Nines (Emma Suárez), una madre soltera a quien Benito conoce de sus juergas adolescentes. Benito se propone salvar a Lalo de Nines… pero no cuenta con Ainara (Violeta Rodríguez), la hija de ella, una niña rebelde e introvertida con quien Benito acabará trabando una insólita amistad.