Mercaillon threatens Moïse to reveal his secret if he does not confess to him where André is, whose Marie-Jo lost track at the Moscow airport. In Paris, Sophie confesses to her mother her love for Yamine.
For the Moïse's birthday, Colonel Mercaillon threatens to reveal his homosexuality. Jacquard and Moulinier left for Moscow with Calot discover the Soviet customs. Meanwhile, André accesses the KGB archives.
Moïse blackmail the colonel to save André's life. Sequestered until then in a room of the service, the young man is released, but Mercaillon attempts an umpteenth time to have it eliminated by his henchmen.
Agents Moulinier, Jacquard and Calot receive their counterparts from the CIA to prepare the arrival of the Kennedy couple in Paris. Moïse entrusts Marie-Jo with a mission to track André. The colonel follows his wife and Moïse and discovers that the latter is homosexual.