Albert finds Lorraine with the Communists, and he will have to prove that he isn't the traitor. Meanwhile, Manu and Solange are on their way out of France. As they're getting more and more intimate, Solange is caught by Shäffer and Manu flees abroad.

Albert and Lorraine are tracking down the traitor responsible for the Hexagone Network's downfall, but discovering his identity might be much more devastating than they thought. Meanwhile, Schäffer tries to win back Solange, who ends up giving in...