Let's swap the best. Under this motto, Europol sends Hamburg Commissioner Lost to the Portuguese coastal town of Fuseta. His colleagues, the self-confident Graciana and the easy-going Carlos, wonder about the "Alemao". Despite the summer heat, he wears a perfectly fitting suit, knows everything very well and even understands your collegial gossip in Portuguese. However, the newcomer has little use for her sense of humour. There is no time to get to know each other, because the body of a private detective has been found on the beach. When the trio searches his apartment, an incident occurs in which Lost shoots his colleague Carlos with pinpoint accuracy. Police Chief Da Silva has no choice but to send the German home. With the intervention of Graciana's sister Soraia, who recognizes his behavior as Asperger's autism, the team gives him a real chance. Now he shows his special skills, through which the team gets on the track of an economic scandal.