Lena reveals her connection to Lukas, and opens up about her past. Lukas finds a clue from a previous meeting with Case, involving Leon. Arrested by the police, Lukas manages to send a warning to Hanna, alerting her that Leon is in danger. Lucas is taken from the police by the BND, the Federal police.
Now suspected in the killing of Kaufmann, Lucas evades the police with Lena's help. Jansen suspects Siebert may be the leak. Hanna is questioned by the police, and is fearful for her safety, and that of their son Leon. Lukas establishes contact with Marc, who demands that he locate a code that was sent by Case before his death.