"SOKO" is an abbreviation of the German word Sonderkommission, which means "special investigative team".
In it, the teams from Munich, Cologne, Leipzig, Stuttgart, and Wismar have to solve the murder of a police officer.
The five episodes were shown across Germany from 30 September to 4 October 2013.
The first spin-off of SOKO München was a twelve-part series named Solo für Sudmann, launched in 1997.
This was followed by various SOKO series based in different cities in Germany and Austria: