"Ecos da Vermelha" shows the activities of the resistance to the Estado Novo (Portuguese fascist regime) in the city of Vila Franca de Xira, from the early 30's to 1974. Through the eyes of several witnesses that lived those dictatorship years, the film highlights the different initiatives and events that happened on those years on a political, social and cultural level, showing actions in the collectivities, the gathering in the taverns, the church's role and also some important events like the 1967 floods or the 1969 elections.