Otto is the only one who is able to save his Frisian fatherland; but he needs the help of his brother, who is abroad. But his brother does not want to fulfill what he has sworn as a child. So it takes Otto a while to convince him while time is running low for his plans to save East-Frisia.
Tatort is a long-running German/Austrian/Swiss, crime television series set in various parts of these countries. The show is broadcast on the channels of ARD in Germany, ORF in Austria and SF1 in Switzerland.
