On October 4, 2018, France celebrated the 60th anniversary of the Fifth Republic. It is a republic born in the throes of the Algerian War and one which—from the day it was founded by General de Gaulle until the presidency of a very Jupiterian Emmanuel Macron—has been assailed as a “Republican monarchy” by partisans of a more assertive parliamentarian state. By revisiting the struggle of those who dared oppose the new regime — only to suffer a crushing defeat on September 28, 1958, when they were barely able to garner 20% of the vote against the constitutional text — this film shines a powerful new light on the origins of the Fifth Republic and its consequences for the next 60 years. It is a constitutional debate that planted the seeds for a complete upheaval of the French political landscape, on the left in particular, and set the country in motion toward what would be called the Union of the Left.

A montage of newscasts tracing the events of the "damned war" and the German invasion of 1940.

During the worst days of World War II, the British government asks the mathematician Alan Turing to unravel the mysteries of the German Enigma encryption machine, an impossible task to accomplish without the invaluable information that Hans-Thilo Schmidt, a disenchanted but greedy German citizen, had been handing over to the French secret services since 1931.