Helen works undercover to gather more information about Gregor Canalis. The famous German singer Matthias Reim becomes entangled in a spectacular extortion scheme during the Bregenz Festival, where explosives are placed near the stage. Max suffers an acid attack and is saved at the last minute by Professor Mang, the head of the Lake Constance Clinic.

During the local carnival, four gangsters disguised as witches rob a bank in Friedrichshafen. Due to the psychological trauma from the acid attack, Max leaves the region, and his mother Andrea Marek takes over his detective agency along with her nephew Mike. A young woman named Joy, who apparently has a history with Mike, persuades him to steal a famous painting with her. Meanwhile, there is a new boss in town here at Lake Constance: Jo Rammlinger!

Joy tries to seduce the art patron Robin von Wilcke. While she is dating him, Mike steals Robin’s painting. The well-known Austrian auctioneer Wolfgang Pauritsch auctions off the painting. Surprisingly, Robin also appears at the auction, and Mike and Joy are in danger of being arrested. Jo Rammlinger has a 1.5 million-dollar vintage Cobra stolen.

An organized gang hijacks the tourist sailboat ‘Lädine’ and robs its affluent passengers. Turi von Rickenbach’s Cobra sports car is stolen, and as Andrea Marek tries to recover it, their relationship becomes closer, arousing suspicion in Turi’s wife. Turi and Jo Rammlinger increasingly become rivals in car racing competitions, where huge profits are at stake. Robin discovers Turi’s stolen painting, which he purchased at an auction. Turi employs a trick to provide Robin with a deceptively authentic copy.

Turi’s daughter Severina is kidnapped by Jo Rammlinger, and Turi has to pay a ransom of 2 million dollars. And because he keeps losing to Turi, Jo unleashes two gangsters on him, who not only steal his Lamborghini but also nearly burn him alive. Professor Mang rescues him by helicopter and takes him to his clinic just in the nick of time.

An epic showdown takes center stage in this episode between Turi and Jo Rammlinger. The ‘Godfather’ gets beaten up by a notorious biker gang, and Turi dreams of one final Spaghetti Western-style duel against Jo. Joy does everything she can to win Mike back after once again betraying him.

It turns out that the art patron Robin von Wilcke is also a drug dealer who profits from cannabis production in Switzerland. During a bank heist, a valuable Dali painting is stolen. The bank collaborates with the company Mercator, which is supposed to manage the capital and assets of deceased bank customers. However, as journalist Edgar Hofmann discovers, the company does not operate as legitimately as it claims.

Jo Rammlinger also wants to enter the cannabis business. Not amused by Jo’s interference, Robin has him kidnapped and forces him to work for him. When Robin realizes that his painting is indeed a forgery, he threatens Mike and demands that he procure the original. So Mike must find a solution. Journalist Hofmann discovers that the bank does not conduct itself as legitimately as it claims. A valuable Da Vinci sketch is stolen from the ‘Body Worlds’ exhibition.

Jo Rammlinger also wants to enter the arms trade, but it becomes quite dangerous. Mike has stolen the Da Vinci sketch from the ‘Body Worlds’ exhibition in Zurich and can sell it for a substantial sum. His uncle Alfred, also a private detective, approaches him. At the end of the episode, a showdown takes place on the 2,500-meter-high summit of the ‘Säntis’ mountain between Jo Rammlinger and Robin. It appears as if Jo is plummeting to his death…

Private detective Mike Marek and his partner Caro break up. He meets the attractive Esther and gets involved in several well-paid jobs with her. The gangster Jo Rammlinger continues his criminal activities and seeks revenge against his rival Robin von Wilke. A spectacular meeting point for the money exchange is the 1,500-meter-high elevator in the Bürgenstock Resort. Then he places a bomb on a businessman’s plane and blackmails him for 1 million dollars.