S2, E6: The sports shop owner Sebastian Ruppert has a fatal accident during a mountain tour. It soon turns out that the crash was not an accident, but Korbinian and Ulrich are puzzled by several inconsistencies. For example, Ruppert set off accompanied by his son Sebastian who, according to his own statement, turned back soon after. The manager of the sports shop, Andy Auracher, waited for father and son at the summit in vain. When the detectives learn that the widow is having an affair with Andy Auracher, they take to dizzy heights themselves to reconstruct the victim's last hours and finally get on the trail of the murderer. In the meantime, the mountain is calling for Ulrich on a private level as well: freeclimber Britta is not only an important witness, but also an interesting flirt for him.