Was the sacrifice of an entire generation worldwide an avoidable or a necessary tragedy? Are the roots of World War II to be found in the devastation of World War I? Drawing from over 300 hours of archival footage and tracing the journeys of the civilians and soldiers across the world, anonymous or well-known, who fought for survival in this unprecedented period in human history, both heroic and barbaric. On June 28th, 1914, the assassination of an obscure Austrian archduke in Sarajevo triggers the most disastrous conflict the world has ever known. Germany becomes an enemy to France, invades Belgium, and in September arrives at the gates of Paris.