Abstract This present work analyzes the Occupy Square Movement (2015-2016),as of the perspective of networks as a theoretical framework. Ocupa Praça was formed as a resistance group by residents of a neighborhood of Teresina (capital of the state of Piaui) in the confrontation against the attacks of the local City Hall, which, in order to implement part of the Urban Mobility Plan, intended to suppress a square with wide green area. The research identified how the different movements and organizations reinforced the power of Ocupa Praça in the political scenario. To this end, documents, information from the corporate media and the Movement on social networks were analyzed. Nine interviews were also conducted with militants who formed links in the network of supporters and one with a representative of the government. As a result, it was highlighted the strong presence of “nodes” of a movementist network that guided the socio-environmental issue in the public debate and expanded the Movement's power of interlocution, generating impact and influence on the urban mobility policy, changing it according to residents' interests.