Watch Prueba de fondo (2018) : Full Movie Online Free Explores the daily life of a group of marathon runners from the Central Highlands of Peru who seek to break more than just their own records. Around the practice of athletics, many stories of overcoming challenges are woven in the Andes. One of them is that of Inés Melchor, multiple Pan American champion, who in the last two years has experienced unexpected defeats and the need to rearm herself.