From the armistice of 1918, which marked the end of the First World War, to the declaration of war in September 1939, the beginning of the Second World War: an era during which there was an aspiration to create a new world, prosperous and at peace, but which provoked a new tragedy, seen through the destinies of thirteen people who were both actors and witnesses of the upheavals of the so-called inter-war period.

When war broke out in Europe in 1914, most people thought the conflict would be over by Christmas; they could not imagine how wrong they were. An attack in Sarajevo ended up becoming a snowball that swept the world: a new kind of warfare had begun, waged with techniques and means never seen before. By November 1918, ten million people had died and the political map of the planet had been redrawn.

SOKO Leipzig is a German police procedural television programme, a spin-off of the earlier German police programme SOKO 5113. It was first broadcast on 31 January 2001, on German television channel ZDF. On 12 November 2008, the first part of a two-part crossover between SOKO Leipzig and British police procedural The Bill was aired, with the same version being shown on both ZDF and British television channel ITV1.

SOKO Leipzig is a German police procedural television programme, a spin-off of the earlier German police programme SOKO 5113. It was first broadcast on 31 January 2001, on German television channel ZDF. On 12 November 2008, the first part of a two-part crossover between SOKO Leipzig and British police procedural The Bill was aired, with the same version being shown on both ZDF and British television channel ITV1.