Freshly elected, President Paul Archambault must face an unprecedented crisis: his Russian counterpart, the target of an attack, brandishes a nuclear ultimatum threatening an ally of France. Faced with the risk of military escalation, the president gathers his staff in the bunker of the Elysée. In the secrecy of the command post Jupiter, Paul will have to make a dizzying decision.
| Actor | Role |
|---|---|
 Denis MénochetPaul Archambault | Paul Archambault |
 Ella RumpfLouise Savina, Diplomatic Advisor | Louise Savina, Diplomatic Advisor |
 Céline SalletteClara Boyer, First Minister | Clara Boyer, First Minister |
 Dominique BlancMarie Pernet, Foreign minister | Marie Pernet, Foreign minister |
 Reda KatebAlexandre Kacem, Secretary of Defense | Alexandre Kacem, Secretary of Defense |
 André DussollierJean Lavallée, Army chief of staff | Jean Lavallée, Army chief of staff |
 Frédéric PierrotPierre Bérard | Pierre Bérard |
 Cédric KahnAlain Davos, Director of the DGSE | Alain Davos, Director of the DGSE |
 Jérémy LopezJérôme Kellerman | Jérôme Kellerman |
 Clotilde CourauNot listed | Not listed |
 Pascal GreggoryNot listed | Not listed |
 Valeriu AndriuțăChernov | Chernov |
 Max GellerConseiller Cotam | Conseiller Cotam |
 Giorgia SinicorniItalian prime minister | Italian prime minister |
 Nathan WillcocksNot listed | Not listed |
| AAnne AmandineJournalist | Journalist |
 Juliet AubreyPresident Silveira | President Silveira |
 Egor MorozovJournalist | Journalist |