The policeman of the highway Frank Hübner was drinking a coffee with his colleague Lothar Kropp in the cafeteria of the highway. Then he goes out, in the parking he speaks shortly with a prostitute and is killed by shooting. Hajo and Ina arrive but they can get any information from Kropp and the other policemen of the highway. The unique witness was the prostitute who spoke a little with Hübner, she only remembers that Frank Hübner said the name of Muller when the killer shot against him. There was a disciplinary complaint against Lothar Kropp for violence against a colleague but the case was classified. Hajo takes the decision to send undercover to Miguel Alvarez in the team of the highway policemen and in his first day Miguel will be the partner of Lothar Kropp.
—zutterjp48