No Overflix. In 2001, the government of Quebec announced a new program to issue permits for the construction of private hydroelectric dams at specific sites. Upset, the population took things into their own hands and decided to act. Citizens formed collectives to protect their waterways, among the most beautiful in the province. This documentary follows several artist and citizen groups who led a crusade to force the Québec government to abandon private hydro-electrical production. It is a thorough inquiry on the environmental impact and other repercussions of such projects.