Patrol colleagues Carlotta Heffler and Tom Landwehr are called to a disturbance; loud music is coming from the Köpenick Rowing Club. The two of them are presented with a gruesome sight.

Taxi driver Yvonne Grabowski is shot. At the crime scene, the perpetrator pretends to be a passenger and witness. Robert realizes too late who he is dealing with. The perpetrator manages to escape.

Simon comes across a seriously injured young man on his morning jog. Lennard Gallwitz is barely conscious. Simon's help comes too late, Lennard dies in his arms.