Anna is a behavioral expert at the National Police. Her help is called in when the body of a 17-year-old girl is found naked and with a bag around her head in a nature reserve. Forest ranger Michel is the last to see her alive. When Anna discovers a link to another disappearance, the case accelerates. And then another girl disappears.
Lukas Franke (Matthias Schweighöfer) is the victim of a cyber-crime attack. All his personal data, web and social media profiles get hacked and he gets accused of being involved in eco-terrorism. Lukas struggles to prove that he is innocent. His family, friends and colleagues doubt his innocence and start suspecting him. Lukas tries to find out who is behind the cyber-attacks and finds another victim, Lena Arandt, with whom he tries to solve the situation. Together they find out that someone from the German BKA (Federal Criminal Police) pulls the strings behind this crime.