[6] Lukas Franke (Matthias Schweighöfer), a hotel manager in Berlin, is the victim of a cyber attack and has his online data altered to implicate him as a member of a terrorist-activist group.

He searches for the people responsible to prove his innocence, but his friends, family and colleagues begin to doubt him.

He discovers another hacking victim, Lena Arandt (Karoline Herfurth), whom he tries to work with to find out the truth.

Meanwhile, police investigator Sandra Jansen (Catrin Striebeck) is leading the investigation into Franke alongside her partner Thorsten Siebert (Edin Hasanović [de]), whilst the German Federal Intelligence Service, the BND, also begin to get involved.

A soundtrack album featuring original music composed by Josef Bach and Arne Schumann, as well as songs by Simon Hughes, Tina Pepper, Chester Travis and Walking on Cars, was released alongside the series on 17 March 2017.