In a film consisting entirely of fictitious found-footage, we discover how a young activist, Ulysse, provokes a nationwide cataclysm by stealing a micro-organism developed by a state laboratory: the "mycelium". This microorganism has the ability to degrade all metals and their components, and its spread would risk taking the whole of civilization back to the Stone Age.
| Actor | Role |
|---|---|
| MMathieu BarchéNot listed | Not listed |
| AAngèle PeyradeHélène | Hélène |
| AAhmed HamadiAlexandre | Alexandre |
 Francis LeplayLe Président de la République | Le Président de la République |
 Pierre-François GarelSivens | Sivens |