Genoa, during the Years of Lead. The members of local cell of the Red Brigades try to storm into the Italsider plant but they find themselves face to face with the trade-unionists, and more particularly with one of their leaders, Guido Rossa. For the first time ever in their history, the Red Brigades decide to kill not only a worker but a unionist as well. Guido Rossa was murdered on 24-1-1979, eight months after the assassination of Aldo Moro.