Lukas is questioned by the police, and learns that they believe he's planning further attacks, and is working with Lena. Hanna is devastated following revelations leaked by the hacker. Jansen begins to suspect a leak within her department. Lukas finds Kaufmann, and demands answers.

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.

Jansen and Siebert begin to believe that Lucas is telling the truth, and widen their investigation. Marc frees Lukas so that he can continue his search for the code, and puts in motion a dangerous plan to buy more time and hide his tracks. Lukas races the clock to find answers and save his family.

Not long after Lukas and Hanna managed to escape the terror of the security services and hackers. Their plan was to make a fresh start. The horror starts all over again. When Lukas regains consciousness in a hospital suffering memory loss, the Burning Man computer, which he and Hanna had hidden as an insurance policy, has vanished. If they're to survive, Lukas has to find the computer.

In his search for the missing laptop, Lukas meets the mysterious "Angel". She knows more about him than he does himself. And she's always on hand to save him. Is she really a guardian angel? With her help, Lukas starts tracking down the computer. When he follows her, he meets an adversary who ought to be long since dead.

The digital world seems unbeatable and Lukas has only one final option. He has to "pull the plug". The consequences will be irreversible, but he's willing to take them.

Lukas isn't the only one who wants to get his hands on Burning Man. As he searches for the computer, he is caught up in a cycle of violence that there's no escaping from. And Hanna has to make a choice. If she and her family are to have a future, being at Lukas' side isn't enough. She has to act herself.