Twenty years ago, on November 9th 1989, tens of thousands of Berliners crossed the border between the East and the West and started to knock down the wall that for 28 years had divided their city and with it a whole continent. Slowly the people of the East returned to freedom and democracy thanks above all to the courage of Mikhail Gorbaciov and Helmut Kohl. Resetdoc revisits those events that posed the foundations for the reunification of Europe.