Extreme right-wing terrorism is becoming an ever-bigger threat in Western societies. Since 2015, sixteen terror attacks have taken place in Europe. Far-right violent extremist groups are now the second most important threat after Islamic terrorism in Europe and white supremacism has become the greatest terrorism threat in the US. This risk has become even more present with the current crises that our societies are facing, such as the isolation related to COVID-19 or the war in Ukraine. This close-up investigation documentary delves into the cases of previous terrorist attacks worldwide and gives voice to present and former far-right activists, victims, militants fighting ultra-right and antiterrorism officers. This film raises awareness on a growing threat which represents a critical challenge to our democracies and tries to understand the link between these acts of terrorism and the growing political polarization and the mainstreaming of extremist beliefs in contemporary societies.