When 30y/o Joel returns to the stairwell, he freezes in shock. His baby stroller is gone.

Carola Weber is shocked when her husband Jochen introduces his new colleague from the hospital: she knows this voice. Hearing it catapults Carola back to the worst time of her life, her imprisonment in the GDR women's prison Hoheneck. She is convinced that Prof. Wolfgang Limberg was the doctor who treated her there with psychotropic drugs in order to force her to testify, and thus caused her to lose two fingers while working on the conveyor belt. Carola's career as a pianist was over forever.

While working as a sea rescuer, Katharina Venner finds a young woman, Annika Bohn, murdered at sea. Katharina is shocked: her husband Nils is arrested as the main suspect. Nils was on the beach with Annika on the night of death and was so drunk that he cannot remember. But murder? Unthinkable! Katharina knows the dead woman, she was a guest in her parents' hotel. Since the police only seem to be investigating Nils, they start investigating.

The young investment banker Elena Wagner is the star at the Ahrends & Oppermann bank in Frankfurt. She loves her job and subordinates everything else to it. She even ends her relationship with IT boss Marc for her work. Suddenly, however, she is excluded from meetings and her boss, Dr. Ahrends no longer wants to receive her. She only has a little time to get to the bottom of the matter with her ex-boyfriend Marc and save her own existence.

As a geophysicist, Leonard Gehra is now known for his theories on silver mining. However, Leonard originally comes from the mining town of Buchenrode in the Harz Mountains, which he left after the mysterious death of his father in the 1970s. Now Leonard is to return to his homeland to put his previously theoretical method of mining silver in the old mining tunnels of Buchenrode into practice. The town is on the verge of bankruptcy after Ferdinand Türnitz decided to close his mines. Leonard, in whom the town's last hope is now placed, sets to work and discovers a long-kept secret during his investigations, which does not leave his father and Türnitz out in the cold.

Advertising manager Wilms has strangled a girl – possibly. At the airport, he tries to escape his memories. When he is suspected of a crime he probably did not commit, he involuntarily becomes the investigator of his own case...

After the death of his wife, respected writer Henrik Agdestein won't let anyone get close to him, neither the kind-hearted teacher Sonja nor the feisty policewoman Laura. And certainly not top politician Leif, whose homosexuality he disapproves of.

Teenage girl Lys is discovered inside the reactor of the newly build TERRA Power Plant and finds she is developing special powers that connect her to the energy of all living things.