Recently transferred to Strasbourg, police captain César Wagner struggles to find his bearings in his new team. For his first assignment, he investigates the apparently accidental death of a budding local football star, while also seeking to assert his authority in his squad.
Cesar is called to a curious crime scene: a young woman has been found completely drained of blood. The victim is a Romanian delegate to the European Council for Human Rights. Cesar worries about cell phone "radiation", submitting a blood sample for lab tests, possible allergic reactions to latex/rubber, and more.
In episode 3, two people are found dead within hours of each other near the Museum of Modern Art. Evidence shows that they knew each other. César Wagner and team investigate while being involved at the Museum's activities. César and his mother, the Mayor of Strasbourg, continue on conflicting paths.
All the gold of the Rhine: A young man has been found executed by a bullet to the head, dressed in an authentic SS uniform. Wagner and his team investigate the murder of this history student, a shady life where he frequented both the neo-Nazis and their enemies the anti-fascists. But what was he really seeking ?
Someone finds a human finger in a bottle of beer from a local brewery -- owned by Cèsar's cousins. He is determined to solve the mystery before the local press gets wind of it. Farid's replacement may be more neurotic than Cèsar. Cèsar's mother is having medical issues.