Steelworks owner Annette Loibl is horrified – her blind daughter Charlotte has been kidnapped. The investigation focuses on Vroni Ketschauer, who was fired by Annette's partner, Ferdinand Mitterhammer. Sophia goes undercover as a security officer at the Loibl steelworks. She feels sorry for Vroni Ketschauer, a single mother struggling financially and harboring a secret, and is carried away by a rash action… Meanwhile, new colleague Franzi helps the grateful detectives Strasser and Paulsen install a call trace.

Dr. Hartmann summons the investigators to a refrigerated truck. After 15 years, the Blaueis Glacier has released Vroni Gagern's body. Because Jerry immediately notices that the safety rope has been cut, and because rumors have been circulating about the Gagerns' marriage, the police reopen the investigation. Soon, not only is widower Hannes a suspect, because he had an argument with his wife before her last mountain tour, but Eric Wolters, a physiotherapist, also falls under suspicion for medical malpractice. And what is Sebastian Niederegger hiding, whose wife Julia is currently pregnant? While searching for remains on the glacier, Veronika's son Moritz finds his mother's backpack and could shed light on the mystery.