Lebenslaute is a nationwide network of mainly classical musicians who meet once a year to blockade a "political hotspot". In the summer of 2020, several concerts were In the summer of 2020, several concerts blocked the shift change at the Rheinmetall weapons factory in Unterlüß, Lower Saxony. The film tells about the rehearsals and the action training of the musicians during the preparatory camp and accompanies them during the action. and accompanies them during the action.