The hour-long series follows a top team of detectives who will re-examine controversial murder cases in which unresolved questions still linger long after the verdict was determined.
After the bad outcome of the criminal operation in Lenin Park, Taras decides on a new career path, private detective. First, it is rented by Klara Zupet, a wealthy daughter from Ljubljana. She wants Taras to investigate the new wife of her rich father, the influential entrepreneur Zupet, as she is convinced that she is only with him for self-interest.
The focus is on the psychologist Stefan Schwab, who after overwork, burnout and divorce is actually just looking for the proverbial “Boarische Rua” ("Bavarian peace") in the tranquil foothills of the Alps. However, this wish is not fulfilled; instead, he is reluctantly drawn into the bloody awakening of ancient legends: children disappear, “sinners” are murdered and archaic legends suddenly take on a deadly relevance.
The year is 1975, and the West German embassy in Stockholm is occupied by German terrorists. It's an attack not only on the embassy, but on Sweden's long-standing pride as a peaceful nation. In the aftermath of the violent occupation, the Swedish Security Police suspects the six terrorists had help from the outside, possibly from a group of Swedish sympathizers. But no leads can be found until fourteen years later.
In Nam-ngam District, a northern border area rich in natural resources and kind-hearted people, a large river separates two long-time friendly neighboring countries. The village has a peaceful temple, where a boy named Dam was abandoned by his mother and left in the care of Luang Por Singto, the temple abbot. Luang Por raised Dam well and taught him martial arts like Muay Thai and Krabi Krabong, which he had mastered before becoming a monk.
Tan Yan, a deputy chief in the Luteng Public Security Bureau, is assigned to lead the special police team but faces challenges working with experienced leader Liao Bufan. As their teamwork improves, Tan Yan plays a key role in a joint operation with the anti-drug team to complete their mission.