This police series has filmed again in Barcelona, where the action takes place. The fourth chapter of Der Barcelona Krimi is entitled "Okupa". Its protagonists are again the agents of the mossos Xavi Bonet (Clemens Schick) and Fina Valent (Anne Schäfer). Fresco Film Services has offered the production service to Dreamtool Entertainment on behalf of ARD Degeto for Das Erste. In 2016 Dreamtoll Entertainnmet already relied on Fresco Film Service for the filming of the first, second and third part of Der Barcelona Krimi shot entirely in Barcelona. Isabell Šuba directs again after doing so also in the third chapter of the series.