Sequence on protesters from many sectors in Quebec City before the "Shamrock Summit", including the Canadian Communist Party, Greenpeace, women rights groups, anti-nuclear groups, anti-American protesters. Shots of them marching in streets heading for Parliament, marching in Old Quebec City. Incidental shots of activist Lea Roback amongst protesters. Shots of them bearing several banners. Shots of police installing safety barriers. Shot of tattered American flag. Shot of the protesters at Place d'Armes. MLS of many protesters with red and white umbrellas near Château Frontenac.