Pruebas de Fuego are six stories about how much life can change in just 10 minutes. A couple of lovers, a husband who loses his son, an ex-convict who leaves prison, a young man in love, a wife locked up in his house and a nurse with his dying mother.

While Thomas spends his last weekend in Chile with his family, before traveling abroad for the first time, a flaw in the sewage system produces a flood of smelly water. The problem shows the essence of family relationships.