Franz saves Eva from an assassination attempt, but discovers that there is a traitor in their organization. Eva and the Redlińskis are to be smuggled to Sweden, but the Russians and Germans try to stop them. Franz's plan misleads the enemy - instead of by train, the escape takes place by car on back roads.

Franz finds Greta in a Berlin cabaret and helps her escape from Engel. She later confesses that she once betrayed him by trying to sell information about Johann, who was collaborating with the Soviets. In Gotenhafen, the SS begins investigating, and Eva provides Franz with an alibi. Franz and Eva set a trap for Johann, giving him false information about the smuggling of documents.

Bismarck's sabotage is called into question when it is revealed that Johann has betrayed him. Eva fights to organize a banquet on the battleship that will enable the action to be carried out. Bergman hinders her plans, but thanks to Stromberg's influence, the banquet goes ahead. Franz organizes a new sabotage plan, involving Staszek, but after he is shot, Tadek takes over the task.